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Finding the Fourth Proportional to 370,610.47, 555,915.70 and 90,125.29

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Solution

The fourth proportional to 370,610.47, 555,915.70 and 90,125.29 is: 135,187.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,610.47 : 555,915.70 = 90,125.29 : x
  2. Step 2: Convert to fraction form
    370,610.47/555,915.70 = 90,125.29/x
  3. Step 3: Cross multiply
    370,610.47x = 555,915.70 × 90,125.29
  4. Step 4: Simplify right side
    370,610.47x = 50,102,060,898.47
  5. Step 5: Solve for x
    x = 50,102,060,898.47/370,610.47
  6. Step 6: Final answer
    x = 135,187.93

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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.