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Finding the Fourth Proportional to 172,884.70, 259,327.05 and 162,387.10

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Solution

The fourth proportional to 172,884.70, 259,327.05 and 162,387.10 is: 243,580.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,884.70 : 259,327.05 = 162,387.10 : x
  2. Step 2: Convert to fraction form
    172,884.70/259,327.05 = 162,387.10/x
  3. Step 3: Cross multiply
    172,884.70x = 259,327.05 × 162,387.10
  4. Step 4: Simplify right side
    172,884.70x = 42,111,367,601.06
  5. Step 5: Solve for x
    x = 42,111,367,601.06/172,884.70
  6. Step 6: Final answer
    x = 243,580.65

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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.