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Finding the Fourth Proportional to 235,615.58, 325,142.10 and 128,182.88

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Solution

The fourth proportional to 235,615.58, 325,142.10 and 128,182.88 is: 176,888.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,615.58 : 325,142.10 = 128,182.88 : x
  2. Step 2: Convert to fraction form
    235,615.58/325,142.10 = 128,182.88/x
  3. Step 3: Cross multiply
    235,615.58x = 325,142.10 × 128,182.88
  4. Step 4: Simplify right side
    235,615.58x = 41,677,650,787.25
  5. Step 5: Solve for x
    x = 41,677,650,787.25/235,615.58
  6. Step 6: Final answer
    x = 176,888.35

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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.