Home / 280,158.20-386,627.28-159,319.16

Finding the Fourth Proportional to 280,158.20, 386,627.28 and 159,319.16

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Solution

The fourth proportional to 280,158.20, 386,627.28 and 159,319.16 is: 219,865.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,158.20 : 386,627.28 = 159,319.16 : x
  2. Step 2: Convert to fraction form
    280,158.20/386,627.28 = 159,319.16/x
  3. Step 3: Cross multiply
    280,158.20x = 386,627.28 × 159,319.16
  4. Step 4: Simplify right side
    280,158.20x = 61,597,133,482.68
  5. Step 5: Solve for x
    x = 61,597,133,482.68/280,158.20
  6. Step 6: Final answer
    x = 219,865.54

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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.