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Finding the Fourth Proportional to 235,675.20, 325,234.80 and 128,248.14

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Solution

The fourth proportional to 235,675.20, 325,234.80 and 128,248.14 is: 176,984.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,675.20 : 325,234.80 = 128,248.14 : x
  2. Step 2: Convert to fraction form
    235,675.20/325,234.80 = 128,248.14/x
  3. Step 3: Cross multiply
    235,675.20x = 325,234.80 × 128,248.14
  4. Step 4: Simplify right side
    235,675.20x = 41,710,758,163.27
  5. Step 5: Solve for x
    x = 41,710,758,163.27/235,675.20
  6. Step 6: Final answer
    x = 176,984.08

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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.