Home / 261,320.44-391,853.90-153,279.32

Finding the Fourth Proportional to 261,320.44, 391,853.90 and 153,279.32

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Solution

The fourth proportional to 261,320.44, 391,853.90 and 153,279.32 is: 229,844.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,320.44 : 391,853.90 = 153,279.32 : x
  2. Step 2: Convert to fraction form
    261,320.44/391,853.90 = 153,279.32/x
  3. Step 3: Cross multiply
    261,320.44x = 391,853.90 × 153,279.32
  4. Step 4: Simplify right side
    261,320.44x = 60,063,099,331.35
  5. Step 5: Solve for x
    x = 60,063,099,331.35/261,320.44
  6. Step 6: Final answer
    x = 229,844.63

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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.