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Finding the Fourth Proportional to 235,677.88, 325,230.04 and 128,248.16

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Solution

The fourth proportional to 235,677.88, 325,230.04 and 128,248.16 is: 176,979.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,677.88 : 325,230.04 = 128,248.16 : x
  2. Step 2: Convert to fraction form
    235,677.88/325,230.04 = 128,248.16/x
  3. Step 3: Cross multiply
    235,677.88x = 325,230.04 × 128,248.16
  4. Step 4: Simplify right side
    235,677.88x = 41,710,154,206.73
  5. Step 5: Solve for x
    x = 41,710,154,206.73/235,677.88
  6. Step 6: Final answer
    x = 176,979.50

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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.