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Finding the Fourth Proportional to 439,432.80, 606,327.84 and 258,174.24

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Solution

The fourth proportional to 439,432.80, 606,327.84 and 258,174.24 is: 356,227.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,432.80 : 606,327.84 = 258,174.24 : x
  2. Step 2: Convert to fraction form
    439,432.80/606,327.84 = 258,174.24/x
  3. Step 3: Cross multiply
    439,432.80x = 606,327.84 × 258,174.24
  4. Step 4: Simplify right side
    439,432.80x = 156,538,229,282.84
  5. Step 5: Solve for x
    x = 156,538,229,282.84/439,432.80
  6. Step 6: Final answer
    x = 356,227.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.