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Finding the Fourth Proportional to 344,146.40, 516,046.80 and 156,946.40

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Solution

The fourth proportional to 344,146.40, 516,046.80 and 156,946.40 is: 235,340.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,146.40 : 516,046.80 = 156,946.40 : x
  2. Step 2: Convert to fraction form
    344,146.40/516,046.80 = 156,946.40/x
  3. Step 3: Cross multiply
    344,146.40x = 516,046.80 × 156,946.40
  4. Step 4: Simplify right side
    344,146.40x = 80,991,687,491.52
  5. Step 5: Solve for x
    x = 80,991,687,491.52/344,146.40
  6. Step 6: Final answer
    x = 235,340.80

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1.5x scale

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.