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Finding the Fourth Proportional to 266,581.20, 399,094.20 and 238,587.60

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Solution

The fourth proportional to 266,581.20, 399,094.20 and 238,587.60 is: 357,185.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,581.20 : 399,094.20 = 238,587.60 : x
  2. Step 2: Convert to fraction form
    266,581.20/399,094.20 = 238,587.60/x
  3. Step 3: Cross multiply
    266,581.20x = 399,094.20 × 238,587.60
  4. Step 4: Simplify right side
    266,581.20x = 95,218,927,351.92
  5. Step 5: Solve for x
    x = 95,218,927,351.92/266,581.20
  6. Step 6: Final answer
    x = 357,185.46

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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.