Home / 280,259.92-386,766.90-152,943.72

Finding the Fourth Proportional to 280,259.92, 386,766.90 and 152,943.72

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Solution

The fourth proportional to 280,259.92, 386,766.90 and 152,943.72 is: 211,066.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,259.92 : 386,766.90 = 152,943.72 : x
  2. Step 2: Convert to fraction form
    280,259.92/386,766.90 = 152,943.72/x
  3. Step 3: Cross multiply
    280,259.92x = 386,766.90 × 152,943.72
  4. Step 4: Simplify right side
    280,259.92x = 59,153,568,458.87
  5. Step 5: Solve for x
    x = 59,153,568,458.87/280,259.92
  6. Step 6: Final answer
    x = 211,066.81

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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.