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Finding the Fourth Proportional to 270,960.96, 406,580.22 and 128,966.88

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Solution

The fourth proportional to 270,960.96, 406,580.22 and 128,966.88 is: 193,516.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,960.96 : 406,580.22 = 128,966.88 : x
  2. Step 2: Convert to fraction form
    270,960.96/406,580.22 = 128,966.88/x
  3. Step 3: Cross multiply
    270,960.96x = 406,580.22 × 128,966.88
  4. Step 4: Simplify right side
    270,960.96x = 52,435,382,443.11
  5. Step 5: Solve for x
    x = 52,435,382,443.11/270,960.96
  6. Step 6: Final answer
    x = 193,516.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.