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Finding the Fourth Proportional to 235,580.29, 325,104.70 and 128,150.90

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Solution

The fourth proportional to 235,580.29, 325,104.70 and 128,150.90 is: 176,850.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,580.29 : 325,104.70 = 128,150.90 : x
  2. Step 2: Convert to fraction form
    235,580.29/325,104.70 = 128,150.90/x
  3. Step 3: Cross multiply
    235,580.29x = 325,104.70 × 128,150.90
  4. Step 4: Simplify right side
    235,580.29x = 41,662,459,899.23
  5. Step 5: Solve for x
    x = 41,662,459,899.23/235,580.29
  6. Step 6: Final answer
    x = 176,850.36

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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.