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Finding the Fourth Proportional to 172,298.93, 258,464.60 and 50,719.55

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Solution

The fourth proportional to 172,298.93, 258,464.60 and 50,719.55 is: 76,084.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,298.93 : 258,464.60 = 50,719.55 : x
  2. Step 2: Convert to fraction form
    172,298.93/258,464.60 = 50,719.55/x
  3. Step 3: Cross multiply
    172,298.93x = 258,464.60 × 50,719.55
  4. Step 4: Simplify right side
    172,298.93x = 13,109,206,910.61
  5. Step 5: Solve for x
    x = 13,109,206,910.61/172,298.93
  6. Step 6: Final answer
    x = 76,084.09

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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.