Home / 240,691.12-332,109.48-138,702.28

Finding the Fourth Proportional to 240,691.12, 332,109.48 and 138,702.28

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Solution

The fourth proportional to 240,691.12, 332,109.48 and 138,702.28 is: 191,383.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,691.12 : 332,109.48 = 138,702.28 : x
  2. Step 2: Convert to fraction form
    240,691.12/332,109.48 = 138,702.28/x
  3. Step 3: Cross multiply
    240,691.12x = 332,109.48 × 138,702.28
  4. Step 4: Simplify right side
    240,691.12x = 46,064,342,085.61
  5. Step 5: Solve for x
    x = 46,064,342,085.61/240,691.12
  6. Step 6: Final answer
    x = 191,383.64

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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.