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Finding the Fourth Proportional to 530.71, 732.34 and 297.79

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Solution

The fourth proportional to 530.71, 732.34 and 297.79 is: 410.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    530.71 : 732.34 = 297.79 : x
  2. Step 2: Convert to fraction form
    530.71/732.34 = 297.79/x
  3. Step 3: Cross multiply
    530.71x = 732.34 × 297.79
  4. Step 4: Simplify right side
    530.71x = 218,083.53
  5. Step 5: Solve for x
    x = 218,083.53/530.71
  6. Step 6: Final answer
    x = 410.93

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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.