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Finding the Fourth Proportional to 508,107.71, 701,188.65 and 281,753.21

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Solution

The fourth proportional to 508,107.71, 701,188.65 and 281,753.21 is: 388,819.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,107.71 : 701,188.65 = 281,753.21 : x
  2. Step 2: Convert to fraction form
    508,107.71/701,188.65 = 281,753.21/x
  3. Step 3: Cross multiply
    508,107.71x = 701,188.65 × 281,753.21
  4. Step 4: Simplify right side
    508,107.71x = 197,562,154,706.04
  5. Step 5: Solve for x
    x = 197,562,154,706.04/508,107.71
  6. Step 6: Final answer
    x = 388,819.44

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1.5x scale

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.