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Finding the Fourth Proportional to 180,958.32, 249,702.32 and 100,365.66

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Solution

The fourth proportional to 180,958.32, 249,702.32 and 100,365.66 is: 138,493.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,958.32 : 249,702.32 = 100,365.66 : x
  2. Step 2: Convert to fraction form
    180,958.32/249,702.32 = 100,365.66/x
  3. Step 3: Cross multiply
    180,958.32x = 249,702.32 × 100,365.66
  4. Step 4: Simplify right side
    180,958.32x = 25,061,538,150.33
  5. Step 5: Solve for x
    x = 25,061,538,150.33/180,958.32
  6. Step 6: Final answer
    x = 138,493.43

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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.