Home / 220,351.29-303,972.85-143,915.16

Finding the Fourth Proportional to 220,351.29, 303,972.85 and 143,915.16

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Solution

The fourth proportional to 220,351.29, 303,972.85 and 143,915.16 is: 198,529.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,351.29 : 303,972.85 = 143,915.16 : x
  2. Step 2: Convert to fraction form
    220,351.29/303,972.85 = 143,915.16/x
  3. Step 3: Cross multiply
    220,351.29x = 303,972.85 × 143,915.16
  4. Step 4: Simplify right side
    220,351.29x = 43,746,302,663.20
  5. Step 5: Solve for x
    x = 43,746,302,663.20/220,351.29
  6. Step 6: Final answer
    x = 198,529.83

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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.