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Finding the Fourth Proportional to 311,240.76, 429,507.96 and 175,287.96

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Solution

The fourth proportional to 311,240.76, 429,507.96 and 175,287.96 is: 241,894.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,240.76 : 429,507.96 = 175,287.96 : x
  2. Step 2: Convert to fraction form
    311,240.76/429,507.96 = 175,287.96/x
  3. Step 3: Cross multiply
    311,240.76x = 429,507.96 × 175,287.96
  4. Step 4: Simplify right side
    311,240.76x = 75,287,574,112.16
  5. Step 5: Solve for x
    x = 75,287,574,112.16/311,240.76
  6. Step 6: Final answer
    x = 241,894.97

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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.