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Finding the Fourth Proportional to 421,650.52, 581,891.50 and 240,359.14

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Solution

The fourth proportional to 421,650.52, 581,891.50 and 240,359.14 is: 331,703.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,650.52 : 581,891.50 = 240,359.14 : x
  2. Step 2: Convert to fraction form
    421,650.52/581,891.50 = 240,359.14/x
  3. Step 3: Cross multiply
    421,650.52x = 581,891.50 × 240,359.14
  4. Step 4: Simplify right side
    421,650.52x = 139,862,940,513.31
  5. Step 5: Solve for x
    x = 139,862,940,513.31/421,650.52
  6. Step 6: Final answer
    x = 331,703.47

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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.