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Finding the Fourth Proportional to 370,562.26, 555,839.34 and 90,079.78

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Solution

The fourth proportional to 370,562.26, 555,839.34 and 90,079.78 is: 135,118.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,562.26 : 555,839.34 = 90,079.78 : x
  2. Step 2: Convert to fraction form
    370,562.26/555,839.34 = 90,079.78/x
  3. Step 3: Cross multiply
    370,562.26x = 555,839.34 × 90,079.78
  4. Step 4: Simplify right side
    370,562.26x = 50,069,885,462.55
  5. Step 5: Solve for x
    x = 50,069,885,462.55/370,562.26
  6. Step 6: Final answer
    x = 135,118.69

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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.