Home / 280,342.27-386,830.49-157,816.96

Finding the Fourth Proportional to 280,342.27, 386,830.49 and 157,816.96

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Solution

The fourth proportional to 280,342.27, 386,830.49 and 157,816.96 is: 217,763.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,342.27 : 386,830.49 = 157,816.96 : x
  2. Step 2: Convert to fraction form
    280,342.27/386,830.49 = 157,816.96/x
  3. Step 3: Cross multiply
    280,342.27x = 386,830.49 × 157,816.96
  4. Step 4: Simplify right side
    280,342.27x = 61,048,410,210.95
  5. Step 5: Solve for x
    x = 61,048,410,210.95/280,342.27
  6. Step 6: Final answer
    x = 217,763.85

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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.