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Finding the Fourth Proportional to 398,001.80, 596,127.90 and 239,954.60

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Solution

The fourth proportional to 398,001.80, 596,127.90 and 239,954.60 is: 359,404.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,001.80 : 596,127.90 = 239,954.60 : x
  2. Step 2: Convert to fraction form
    398,001.80/596,127.90 = 239,954.60/x
  3. Step 3: Cross multiply
    398,001.80x = 596,127.90 × 239,954.60
  4. Step 4: Simplify right side
    398,001.80x = 143,043,631,793.34
  5. Step 5: Solve for x
    x = 143,043,631,793.34/398,001.80
  6. Step 6: Final answer
    x = 359,404.48

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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.