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Finding the Fourth Proportional to 370,151.66, 555,456 and 145,472.60

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Solution

The fourth proportional to 370,151.66, 555,456 and 145,472.60 is: 218,298.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,151.66 : 555,456 = 145,472.60 : x
  2. Step 2: Convert to fraction form
    370,151.66/555,456 = 145,472.60/x
  3. Step 3: Cross multiply
    370,151.66x = 555,456 × 145,472.60
  4. Step 4: Simplify right side
    370,151.66x = 80,803,628,505.60
  5. Step 5: Solve for x
    x = 80,803,628,505.60/370,151.66
  6. Step 6: Final answer
    x = 218,298.71

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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.