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Finding the Fourth Proportional to 532.64, 798.24 and 285.68

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Solution

The fourth proportional to 532.64, 798.24 and 285.68 is: 428.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    532.64 : 798.24 = 285.68 : x
  2. Step 2: Convert to fraction form
    532.64/798.24 = 285.68/x
  3. Step 3: Cross multiply
    532.64x = 798.24 × 285.68
  4. Step 4: Simplify right side
    532.64x = 228,041.20
  5. Step 5: Solve for x
    x = 228,041.20/532.64
  6. Step 6: Final answer
    x = 428.13

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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.