Home / 280,373.43-386,671.12-171,395.22

Finding the Fourth Proportional to 280,373.43, 386,671.12 and 171,395.22

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Solution

The fourth proportional to 280,373.43, 386,671.12 and 171,395.22 is: 236,376.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,373.43 : 386,671.12 = 171,395.22 : x
  2. Step 2: Convert to fraction form
    280,373.43/386,671.12 = 171,395.22/x
  3. Step 3: Cross multiply
    280,373.43x = 386,671.12 × 171,395.22
  4. Step 4: Simplify right side
    280,373.43x = 66,273,582,701.58
  5. Step 5: Solve for x
    x = 66,273,582,701.58/280,373.43
  6. Step 6: Final answer
    x = 236,376.11

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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.