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Finding the Fourth Proportional to 439,209.60, 658,911.60 and 202,495.20

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Solution

The fourth proportional to 439,209.60, 658,911.60 and 202,495.20 is: 303,787.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,209.60 : 658,911.60 = 202,495.20 : x
  2. Step 2: Convert to fraction form
    439,209.60/658,911.60 = 202,495.20/x
  3. Step 3: Cross multiply
    439,209.60x = 658,911.60 × 202,495.20
  4. Step 4: Simplify right side
    439,209.60x = 133,426,436,224.32
  5. Step 5: Solve for x
    x = 133,426,436,224.32/439,209.60
  6. Step 6: Final answer
    x = 303,787.61

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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.