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Finding the Fourth Proportional to 206,117.60, 309,176.40 and 101,141.60

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Solution

The fourth proportional to 206,117.60, 309,176.40 and 101,141.60 is: 151,712.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,117.60 : 309,176.40 = 101,141.60 : x
  2. Step 2: Convert to fraction form
    206,117.60/309,176.40 = 101,141.60/x
  3. Step 3: Cross multiply
    206,117.60x = 309,176.40 × 101,141.60
  4. Step 4: Simplify right side
    206,117.60x = 31,270,595,778.24
  5. Step 5: Solve for x
    x = 31,270,595,778.24/206,117.60
  6. Step 6: Final answer
    x = 151,712.40

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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.