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Finding the Fourth Proportional to 348,654.60, 522,809.01 and 123,981.21

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Solution

The fourth proportional to 348,654.60, 522,809.01 and 123,981.21 is: 185,910.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,654.60 : 522,809.01 = 123,981.21 : x
  2. Step 2: Convert to fraction form
    348,654.60/522,809.01 = 123,981.21/x
  3. Step 3: Cross multiply
    348,654.60x = 522,809.01 × 123,981.21
  4. Step 4: Simplify right side
    348,654.60x = 64,818,493,658.70
  5. Step 5: Solve for x
    x = 64,818,493,658.70/348,654.60
  6. Step 6: Final answer
    x = 185,910.34

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1.5x scale

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.