Home / 280,299.74-386,822.66-159,437.92

Finding the Fourth Proportional to 280,299.74, 386,822.66 and 159,437.92

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Solution

The fourth proportional to 280,299.74, 386,822.66 and 159,437.92 is: 220,029.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,299.74 : 386,822.66 = 159,437.92 : x
  2. Step 2: Convert to fraction form
    280,299.74/386,822.66 = 159,437.92/x
  3. Step 3: Cross multiply
    280,299.74x = 386,822.66 × 159,437.92
  4. Step 4: Simplify right side
    280,299.74x = 61,674,200,625.57
  5. Step 5: Solve for x
    x = 61,674,200,625.57/280,299.74
  6. Step 6: Final answer
    x = 220,029.46

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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.