Home / 268,013.20-401,436.60-162,648.40

Finding the Fourth Proportional to 268,013.20, 401,436.60 and 162,648.40

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Solution

The fourth proportional to 268,013.20, 401,436.60 and 162,648.40 is: 243,618.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,013.20 : 401,436.60 = 162,648.40 : x
  2. Step 2: Convert to fraction form
    268,013.20/401,436.60 = 162,648.40/x
  3. Step 3: Cross multiply
    268,013.20x = 401,436.60 × 162,648.40
  4. Step 4: Simplify right side
    268,013.20x = 65,293,020,691.44
  5. Step 5: Solve for x
    x = 65,293,020,691.44/268,013.20
  6. Step 6: Final answer
    x = 243,618.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.