Home / 280,406.09-386,949.48-153,082.73

Finding the Fourth Proportional to 280,406.09, 386,949.48 and 153,082.73

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Solution

The fourth proportional to 280,406.09, 386,949.48 and 153,082.73 is: 211,248.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,406.09 : 386,949.48 = 153,082.73 : x
  2. Step 2: Convert to fraction form
    280,406.09/386,949.48 = 153,082.73/x
  3. Step 3: Cross multiply
    280,406.09x = 386,949.48 × 153,082.73
  4. Step 4: Simplify right side
    280,406.09x = 59,235,282,770.48
  5. Step 5: Solve for x
    x = 59,235,282,770.48/280,406.09
  6. Step 6: Final answer
    x = 211,248.20

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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.