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Finding the Fourth Proportional to 235,592.68, 325,116.18 and 128,160.76

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Solution

The fourth proportional to 235,592.68, 325,116.18 and 128,160.76 is: 176,860.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,592.68 : 325,116.18 = 128,160.76 : x
  2. Step 2: Convert to fraction form
    235,592.68/325,116.18 = 128,160.76/x
  3. Step 3: Cross multiply
    235,592.68x = 325,116.18 × 128,160.76
  4. Step 4: Simplify right side
    235,592.68x = 41,667,136,717.10
  5. Step 5: Solve for x
    x = 41,667,136,717.10/235,592.68
  6. Step 6: Final answer
    x = 176,860.91

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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.