Home / 220,207.95-303,908.28-123,428.25

Finding the Fourth Proportional to 220,207.95, 303,908.28 and 123,428.25

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Solution

The fourth proportional to 220,207.95, 303,908.28 and 123,428.25 is: 170,342.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,207.95 : 303,908.28 = 123,428.25 : x
  2. Step 2: Convert to fraction form
    220,207.95/303,908.28 = 123,428.25/x
  3. Step 3: Cross multiply
    220,207.95x = 303,908.28 × 123,428.25
  4. Step 4: Simplify right side
    220,207.95x = 37,510,867,160.91
  5. Step 5: Solve for x
    x = 37,510,867,160.91/220,207.95
  6. Step 6: Final answer
    x = 170,342.93

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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.