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Finding the Fourth Proportional to 651.16, 975.26 and 457.03

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Solution

The fourth proportional to 651.16, 975.26 and 457.03 is: 684.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    651.16 : 975.26 = 457.03 : x
  2. Step 2: Convert to fraction form
    651.16/975.26 = 457.03/x
  3. Step 3: Cross multiply
    651.16x = 975.26 × 457.03
  4. Step 4: Simplify right side
    651.16x = 445,717.38
  5. Step 5: Solve for x
    x = 445,717.38/651.16
  6. Step 6: Final answer
    x = 684.50

Related Problems

Find fourth proportional to 325.58, 487.63 and 228.51
Half scale
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Double scale
Find fourth proportional to 652.16, 976.75 and 458.03
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.