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Finding the Fourth Proportional to 284,262.71, 392,281.45 and 156,937.39

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Solution

The fourth proportional to 284,262.71, 392,281.45 and 156,937.39 is: 216,572.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,262.71 : 392,281.45 = 156,937.39 : x
  2. Step 2: Convert to fraction form
    284,262.71/392,281.45 = 156,937.39/x
  3. Step 3: Cross multiply
    284,262.71x = 392,281.45 × 156,937.39
  4. Step 4: Simplify right side
    284,262.71x = 61,563,624,162.32
  5. Step 5: Solve for x
    x = 61,563,624,162.32/284,262.71
  6. Step 6: Final answer
    x = 216,572.99

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