Home / 398,436.04-597,705.90-145,677.16

Finding the Fourth Proportional to 398,436.04, 597,705.90 and 145,677.16

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Solution

The fourth proportional to 398,436.04, 597,705.90 and 145,677.16 is: 218,534.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,436.04 : 597,705.90 = 145,677.16 : x
  2. Step 2: Convert to fraction form
    398,436.04/597,705.90 = 145,677.16/x
  3. Step 3: Cross multiply
    398,436.04x = 597,705.90 × 145,677.16
  4. Step 4: Simplify right side
    398,436.04x = 87,072,098,027.24
  5. Step 5: Solve for x
    x = 87,072,098,027.24/398,436.04
  6. Step 6: Final answer
    x = 218,534.69

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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.