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Finding the Fourth Proportional to 331,790.71, 457,870.91 and 180,887.71

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Solution

The fourth proportional to 331,790.71, 457,870.91 and 180,887.71 is: 249,624.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,790.71 : 457,870.91 = 180,887.71 : x
  2. Step 2: Convert to fraction form
    331,790.71/457,870.91 = 180,887.71/x
  3. Step 3: Cross multiply
    331,790.71x = 457,870.91 × 180,887.71
  4. Step 4: Simplify right side
    331,790.71x = 82,823,220,385.52
  5. Step 5: Solve for x
    x = 82,823,220,385.52/331,790.71
  6. Step 6: Final answer
    x = 249,624.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.