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Finding the Fourth Proportional to 370,404.52, 555,225.40 and 145,673.85

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Solution

The fourth proportional to 370,404.52, 555,225.40 and 145,673.85 is: 218,360.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,404.52 : 555,225.40 = 145,673.85 : x
  2. Step 2: Convert to fraction form
    370,404.52/555,225.40 = 145,673.85/x
  3. Step 3: Cross multiply
    370,404.52x = 555,225.40 × 145,673.85
  4. Step 4: Simplify right side
    370,404.52x = 80,881,821,635.79
  5. Step 5: Solve for x
    x = 80,881,821,635.79/370,404.52
  6. Step 6: Final answer
    x = 218,360.78

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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.