Home / 438,470.20-657,705.30-251,846.20

Finding the Fourth Proportional to 438,470.20, 657,705.30 and 251,846.20

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Solution

The fourth proportional to 438,470.20, 657,705.30 and 251,846.20 is: 377,769.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,470.20 : 657,705.30 = 251,846.20 : x
  2. Step 2: Convert to fraction form
    438,470.20/657,705.30 = 251,846.20/x
  3. Step 3: Cross multiply
    438,470.20x = 657,705.30 × 251,846.20
  4. Step 4: Simplify right side
    438,470.20x = 165,640,580,524.86
  5. Step 5: Solve for x
    x = 165,640,580,524.86/438,470.20
  6. Step 6: Final answer
    x = 377,769.30

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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.