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Finding the Fourth Proportional to 536.77, 740.75 and 303.90

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Solution

The fourth proportional to 536.77, 740.75 and 303.90 is: 419.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    536.77 : 740.75 = 303.90 : x
  2. Step 2: Convert to fraction form
    536.77/740.75 = 303.90/x
  3. Step 3: Cross multiply
    536.77x = 740.75 × 303.90
  4. Step 4: Simplify right side
    536.77x = 225,113.93
  5. Step 5: Solve for x
    x = 225,113.93/536.77
  6. Step 6: Final answer
    x = 419.39

Related Problems

Find fourth proportional to 268.39, 370.38 and 151.95
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Double scale
Find fourth proportional to 537.77, 742.13 and 304.90
Similar ratio
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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.