Home / 280,147.95-386,608.14-159,288.93

Finding the Fourth Proportional to 280,147.95, 386,608.14 and 159,288.93

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Solution

The fourth proportional to 280,147.95, 386,608.14 and 159,288.93 is: 219,820.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,147.95 : 386,608.14 = 159,288.93 : x
  2. Step 2: Convert to fraction form
    280,147.95/386,608.14 = 159,288.93/x
  3. Step 3: Cross multiply
    280,147.95x = 386,608.14 × 159,288.93
  4. Step 4: Simplify right side
    280,147.95x = 61,582,396,949.89
  5. Step 5: Solve for x
    x = 61,582,396,949.89/280,147.95
  6. Step 6: Final answer
    x = 219,820.98

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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.