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Finding the Fourth Proportional to 171,948.30, 257,922.45 and 115,961.10

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Solution

The fourth proportional to 171,948.30, 257,922.45 and 115,961.10 is: 173,941.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,948.30 : 257,922.45 = 115,961.10 : x
  2. Step 2: Convert to fraction form
    171,948.30/257,922.45 = 115,961.10/x
  3. Step 3: Cross multiply
    171,948.30x = 257,922.45 × 115,961.10
  4. Step 4: Simplify right side
    171,948.30x = 29,908,971,016.70
  5. Step 5: Solve for x
    x = 29,908,971,016.70/171,948.30
  6. Step 6: Final answer
    x = 173,941.65

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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.