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Finding the Fourth Proportional to 160,841.28, 241,378.56 and 90,857.28

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Solution

The fourth proportional to 160,841.28, 241,378.56 and 90,857.28 is: 136,351.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,841.28 : 241,378.56 = 90,857.28 : x
  2. Step 2: Convert to fraction form
    160,841.28/241,378.56 = 90,857.28/x
  3. Step 3: Cross multiply
    160,841.28x = 241,378.56 × 90,857.28
  4. Step 4: Simplify right side
    160,841.28x = 21,930,999,411.92
  5. Step 5: Solve for x
    x = 21,930,999,411.92/160,841.28
  6. Step 6: Final answer
    x = 136,351.81

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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.