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Finding the Fourth Proportional to 384,088.60, 576,132.90 and 243,947.80

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Solution

The fourth proportional to 384,088.60, 576,132.90 and 243,947.80 is: 365,921.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,088.60 : 576,132.90 = 243,947.80 : x
  2. Step 2: Convert to fraction form
    384,088.60/576,132.90 = 243,947.80/x
  3. Step 3: Cross multiply
    384,088.60x = 576,132.90 × 243,947.80
  4. Step 4: Simplify right side
    384,088.60x = 140,546,353,462.62
  5. Step 5: Solve for x
    x = 140,546,353,462.62/384,088.60
  6. Step 6: Final answer
    x = 365,921.70

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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.