Home / 268,765.11-370,895.90-147,915

Finding the Fourth Proportional to 268,765.11, 370,895.90 and 147,915

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Solution

The fourth proportional to 268,765.11, 370,895.90 and 147,915 is: 204,122.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,765.11 : 370,895.90 = 147,915 : x
  2. Step 2: Convert to fraction form
    268,765.11/370,895.90 = 147,915/x
  3. Step 3: Cross multiply
    268,765.11x = 370,895.90 × 147,915
  4. Step 4: Simplify right side
    268,765.11x = 54,861,066,308.93
  5. Step 5: Solve for x
    x = 54,861,066,308.93/268,765.11
  6. Step 6: Final answer
    x = 204,122.72

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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.