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Finding the Fourth Proportional to 514.98, 772.53 and 190.32

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Solution

The fourth proportional to 514.98, 772.53 and 190.32 is: 285.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    514.98 : 772.53 = 190.32 : x
  2. Step 2: Convert to fraction form
    514.98/772.53 = 190.32/x
  3. Step 3: Cross multiply
    514.98x = 772.53 × 190.32
  4. Step 4: Simplify right side
    514.98x = 147,027.91
  5. Step 5: Solve for x
    x = 147,027.91/514.98
  6. Step 6: Final answer
    x = 285.50

Related Problems

Find fourth proportional to 257.49, 386.27 and 95.16
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Double scale
Find fourth proportional to 515.98, 774.03 and 191.32
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.