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Finding the Fourth Proportional to 235,984.32, 325,650.15 and 128,551.59

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Solution

The fourth proportional to 235,984.32, 325,650.15 and 128,551.59 is: 177,396.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,984.32 : 325,650.15 = 128,551.59 : x
  2. Step 2: Convert to fraction form
    235,984.32/325,650.15 = 128,551.59/x
  3. Step 3: Cross multiply
    235,984.32x = 325,650.15 × 128,551.59
  4. Step 4: Simplify right side
    235,984.32x = 41,862,844,566.24
  5. Step 5: Solve for x
    x = 41,862,844,566.24/235,984.32
  6. Step 6: Final answer
    x = 177,396.72

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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.