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Finding the Fourth Proportional to 530.49, 732.09 and 294.45

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Solution

The fourth proportional to 530.49, 732.09 and 294.45 is: 406.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    530.49 : 732.09 = 294.45 : x
  2. Step 2: Convert to fraction form
    530.49/732.09 = 294.45/x
  3. Step 3: Cross multiply
    530.49x = 732.09 × 294.45
  4. Step 4: Simplify right side
    530.49x = 215,563.90
  5. Step 5: Solve for x
    x = 215,563.90/530.49
  6. Step 6: Final answer
    x = 406.35

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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.