Home / 280,839.92-387,464.46-159,895.63

Finding the Fourth Proportional to 280,839.92, 387,464.46 and 159,895.63

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Solution

The fourth proportional to 280,839.92, 387,464.46 and 159,895.63 is: 220,602.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,839.92 : 387,464.46 = 159,895.63 : x
  2. Step 2: Convert to fraction form
    280,839.92/387,464.46 = 159,895.63/x
  3. Step 3: Cross multiply
    280,839.92x = 387,464.46 × 159,895.63
  4. Step 4: Simplify right side
    280,839.92x = 61,953,873,934.31
  5. Step 5: Solve for x
    x = 61,953,873,934.31/280,839.92
  6. Step 6: Final answer
    x = 220,602.09

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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.