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Finding the Fourth Proportional to 370,125.91, 555,417.29 and 145,446.90

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Solution

The fourth proportional to 370,125.91, 555,417.29 and 145,446.90 is: 218,260.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,125.91 : 555,417.29 = 145,446.90 : x
  2. Step 2: Convert to fraction form
    370,125.91/555,417.29 = 145,446.90/x
  3. Step 3: Cross multiply
    370,125.91x = 555,417.29 × 145,446.90
  4. Step 4: Simplify right side
    370,125.91x = 80,783,723,036.90
  5. Step 5: Solve for x
    x = 80,783,723,036.90/370,125.91
  6. Step 6: Final answer
    x = 218,260.11

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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.