Home / 280,149.20-386,604.48-152,823.68

Finding the Fourth Proportional to 280,149.20, 386,604.48 and 152,823.68

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Solution

The fourth proportional to 280,149.20, 386,604.48 and 152,823.68 is: 210,895.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,149.20 : 386,604.48 = 152,823.68 : x
  2. Step 2: Convert to fraction form
    280,149.20/386,604.48 = 152,823.68/x
  3. Step 3: Cross multiply
    280,149.20x = 386,604.48 × 152,823.68
  4. Step 4: Simplify right side
    280,149.20x = 59,082,319,338.09
  5. Step 5: Solve for x
    x = 59,082,319,338.09/280,149.20
  6. Step 6: Final answer
    x = 210,895.91

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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.