Home / 298,082.28-447,126.66-87,724.20

Finding the Fourth Proportional to 298,082.28, 447,126.66 and 87,724.20

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Solution

The fourth proportional to 298,082.28, 447,126.66 and 87,724.20 is: 131,587.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,082.28 : 447,126.66 = 87,724.20 : x
  2. Step 2: Convert to fraction form
    298,082.28/447,126.66 = 87,724.20/x
  3. Step 3: Cross multiply
    298,082.28x = 447,126.66 × 87,724.20
  4. Step 4: Simplify right side
    298,082.28x = 39,223,828,547.17
  5. Step 5: Solve for x
    x = 39,223,828,547.17/298,082.28
  6. Step 6: Final answer
    x = 131,587.25

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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.