Home / 280,811.67-387,519.51-159,952.92

Finding the Fourth Proportional to 280,811.67, 387,519.51 and 159,952.92

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Solution

The fourth proportional to 280,811.67, 387,519.51 and 159,952.92 is: 220,734.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,811.67 : 387,519.51 = 159,952.92 : x
  2. Step 2: Convert to fraction form
    280,811.67/387,519.51 = 159,952.92/x
  3. Step 3: Cross multiply
    280,811.67x = 387,519.51 × 159,952.92
  4. Step 4: Simplify right side
    280,811.67x = 61,984,877,181.47
  5. Step 5: Solve for x
    x = 61,984,877,181.47/280,811.67
  6. Step 6: Final answer
    x = 220,734.69

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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.