Home / 439,285.20-658,490.40-202,214.40

Finding the Fourth Proportional to 439,285.20, 658,490.40 and 202,214.40

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Solution

The fourth proportional to 439,285.20, 658,490.40 and 202,214.40 is: 303,120.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,285.20 : 658,490.40 = 202,214.40 : x
  2. Step 2: Convert to fraction form
    439,285.20/658,490.40 = 202,214.40/x
  3. Step 3: Cross multiply
    439,285.20x = 658,490.40 × 202,214.40
  4. Step 4: Simplify right side
    439,285.20x = 133,156,241,141.76
  5. Step 5: Solve for x
    x = 133,156,241,141.76/439,285.20
  6. Step 6: Final answer
    x = 303,120.25

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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.