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Finding the Fourth Proportional to 235,527.69, 325,029.72 and 128,098.50

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Solution

The fourth proportional to 235,527.69, 325,029.72 and 128,098.50 is: 176,776.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,527.69 : 325,029.72 = 128,098.50 : x
  2. Step 2: Convert to fraction form
    235,527.69/325,029.72 = 128,098.50/x
  3. Step 3: Cross multiply
    235,527.69x = 325,029.72 × 128,098.50
  4. Step 4: Simplify right side
    235,527.69x = 41,635,819,587.42
  5. Step 5: Solve for x
    x = 41,635,819,587.42/235,527.69
  6. Step 6: Final answer
    x = 176,776.75

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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.