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Finding the Fourth Proportional to 143,497.60, 215,246.40 and 38,332.80

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Solution

The fourth proportional to 143,497.60, 215,246.40 and 38,332.80 is: 57,499.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,497.60 : 215,246.40 = 38,332.80 : x
  2. Step 2: Convert to fraction form
    143,497.60/215,246.40 = 38,332.80/x
  3. Step 3: Cross multiply
    143,497.60x = 215,246.40 × 38,332.80
  4. Step 4: Simplify right side
    143,497.60x = 8,250,997,201.92
  5. Step 5: Solve for x
    x = 8,250,997,201.92/143,497.60
  6. Step 6: Final answer
    x = 57,499.20

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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.