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Finding the Fourth Proportional to 306,001.80, 458,711.10 and 238,496.40

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Solution

The fourth proportional to 306,001.80, 458,711.10 and 238,496.40 is: 357,517.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,001.80 : 458,711.10 = 238,496.40 : x
  2. Step 2: Convert to fraction form
    306,001.80/458,711.10 = 238,496.40/x
  3. Step 3: Cross multiply
    306,001.80x = 458,711.10 × 238,496.40
  4. Step 4: Simplify right side
    306,001.80x = 109,400,945,990.04
  5. Step 5: Solve for x
    x = 109,400,945,990.04/306,001.80
  6. Step 6: Final answer
    x = 357,517.33

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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.