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Finding the Fourth Proportional to 344,281.80, 516,422.70 and 331,159.80

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Solution

The fourth proportional to 344,281.80, 516,422.70 and 331,159.80 is: 496,739.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,281.80 : 516,422.70 = 331,159.80 : x
  2. Step 2: Convert to fraction form
    344,281.80/516,422.70 = 331,159.80/x
  3. Step 3: Cross multiply
    344,281.80x = 516,422.70 × 331,159.80
  4. Step 4: Simplify right side
    344,281.80x = 171,018,438,047.46
  5. Step 5: Solve for x
    x = 171,018,438,047.46/344,281.80
  6. Step 6: Final answer
    x = 496,739.70

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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.