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Finding the Fourth Proportional to 235,774.82, 325,372.66 and 128,348.22

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Solution

The fourth proportional to 235,774.82, 325,372.66 and 128,348.22 is: 177,122.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,774.82 : 325,372.66 = 128,348.22 : x
  2. Step 2: Convert to fraction form
    235,774.82/325,372.66 = 128,348.22/x
  3. Step 3: Cross multiply
    235,774.82x = 325,372.66 × 128,348.22
  4. Step 4: Simplify right side
    235,774.82x = 41,761,001,747.67
  5. Step 5: Solve for x
    x = 41,761,001,747.67/235,774.82
  6. Step 6: Final answer
    x = 177,122.40

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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.