Home / 220,061.46-303,638.10-129,384.33

Finding the Fourth Proportional to 220,061.46, 303,638.10 and 129,384.33

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Solution

The fourth proportional to 220,061.46, 303,638.10 and 129,384.33 is: 178,522.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,061.46 : 303,638.10 = 129,384.33 : x
  2. Step 2: Convert to fraction form
    220,061.46/303,638.10 = 129,384.33/x
  3. Step 3: Cross multiply
    220,061.46x = 303,638.10 × 129,384.33
  4. Step 4: Simplify right side
    220,061.46x = 39,286,012,130.97
  5. Step 5: Solve for x
    x = 39,286,012,130.97/220,061.46
  6. Step 6: Final answer
    x = 178,522.91

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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.