Home / 220,754.44-304,639.86-120,150.28

Finding the Fourth Proportional to 220,754.44, 304,639.86 and 120,150.28

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Solution

The fourth proportional to 220,754.44, 304,639.86 and 120,150.28 is: 165,806.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,754.44 : 304,639.86 = 120,150.28 : x
  2. Step 2: Convert to fraction form
    220,754.44/304,639.86 = 120,150.28/x
  3. Step 3: Cross multiply
    220,754.44x = 304,639.86 × 120,150.28
  4. Step 4: Simplify right side
    220,754.44x = 36,602,564,478.16
  5. Step 5: Solve for x
    x = 36,602,564,478.16/220,754.44
  6. Step 6: Final answer
    x = 165,806.70

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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.