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Finding the Fourth Proportional to 235,702.17, 325,259.28 and 128,272.41

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Solution

The fourth proportional to 235,702.17, 325,259.28 and 128,272.41 is: 177,010.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,702.17 : 325,259.28 = 128,272.41 : x
  2. Step 2: Convert to fraction form
    235,702.17/325,259.28 = 128,272.41/x
  3. Step 3: Cross multiply
    235,702.17x = 325,259.28 × 128,272.41
  4. Step 4: Simplify right side
    235,702.17x = 41,721,791,720.46
  5. Step 5: Solve for x
    x = 41,721,791,720.46/235,702.17
  6. Step 6: Final answer
    x = 177,010.64

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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.