Home / 280,001.80-386,402.16-165,280.60

Finding the Fourth Proportional to 280,001.80, 386,402.16 and 165,280.60

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Solution

The fourth proportional to 280,001.80, 386,402.16 and 165,280.60 is: 228,087.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,001.80 : 386,402.16 = 165,280.60 : x
  2. Step 2: Convert to fraction form
    280,001.80/386,402.16 = 165,280.60/x
  3. Step 3: Cross multiply
    280,001.80x = 386,402.16 × 165,280.60
  4. Step 4: Simplify right side
    280,001.80x = 63,864,780,846.10
  5. Step 5: Solve for x
    x = 63,864,780,846.10/280,001.80
  6. Step 6: Final answer
    x = 228,087.04

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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.