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Finding the Fourth Proportional to 439,877.60, 659,662.80 and 229,445.60

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Solution

The fourth proportional to 439,877.60, 659,662.80 and 229,445.60 is: 344,088.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,877.60 : 659,662.80 = 229,445.60 : x
  2. Step 2: Convert to fraction form
    439,877.60/659,662.80 = 229,445.60/x
  3. Step 3: Cross multiply
    439,877.60x = 659,662.80 × 229,445.60
  4. Step 4: Simplify right side
    439,877.60x = 151,356,726,943.68
  5. Step 5: Solve for x
    x = 151,356,726,943.68/439,877.60
  6. Step 6: Final answer
    x = 344,088.28

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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.