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Finding the Fourth Proportional to 220,954.64, 331,475.28 and 87,810.08

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Solution

The fourth proportional to 220,954.64, 331,475.28 and 87,810.08 is: 131,732.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,954.64 : 331,475.28 = 87,810.08 : x
  2. Step 2: Convert to fraction form
    220,954.64/331,475.28 = 87,810.08/x
  3. Step 3: Cross multiply
    220,954.64x = 331,475.28 × 87,810.08
  4. Step 4: Simplify right side
    220,954.64x = 29,106,870,854.82
  5. Step 5: Solve for x
    x = 29,106,870,854.82/220,954.64
  6. Step 6: Final answer
    x = 131,732.34

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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.