Home / 280,498.20-387,102.02-171,568.40

Finding the Fourth Proportional to 280,498.20, 387,102.02 and 171,568.40

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Solution

The fourth proportional to 280,498.20, 387,102.02 and 171,568.40 is: 236,773.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,498.20 : 387,102.02 = 171,568.40 : x
  2. Step 2: Convert to fraction form
    280,498.20/387,102.02 = 171,568.40/x
  3. Step 3: Cross multiply
    280,498.20x = 387,102.02 × 171,568.40
  4. Step 4: Simplify right side
    280,498.20x = 66,414,474,208.17
  5. Step 5: Solve for x
    x = 66,414,474,208.17/280,498.20
  6. Step 6: Final answer
    x = 236,773.26

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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.