Home / 280,839.42-387,463.77-159,895.13

Finding the Fourth Proportional to 280,839.42, 387,463.77 and 159,895.13

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Solution

The fourth proportional to 280,839.42, 387,463.77 and 159,895.13 is: 220,601.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,839.42 : 387,463.77 = 159,895.13 : x
  2. Step 2: Convert to fraction form
    280,839.42/387,463.77 = 159,895.13/x
  3. Step 3: Cross multiply
    280,839.42x = 387,463.77 × 159,895.13
  4. Step 4: Simplify right side
    280,839.42x = 61,953,570,116.61
  5. Step 5: Solve for x
    x = 61,953,570,116.61/280,839.42
  6. Step 6: Final answer
    x = 220,601.40

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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.