Home / 206,035.12-284,372.40-121,200.58

Finding the Fourth Proportional to 206,035.12, 284,372.40 and 121,200.58

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Solution

The fourth proportional to 206,035.12, 284,372.40 and 121,200.58 is: 167,282.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,035.12 : 284,372.40 = 121,200.58 : x
  2. Step 2: Convert to fraction form
    206,035.12/284,372.40 = 121,200.58/x
  3. Step 3: Cross multiply
    206,035.12x = 284,372.40 × 121,200.58
  4. Step 4: Simplify right side
    206,035.12x = 34,466,099,815.99
  5. Step 5: Solve for x
    x = 34,466,099,815.99/206,035.12
  6. Step 6: Final answer
    x = 167,282.64

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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.