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Finding the Fourth Proportional to 171,139.60, 256,716.68 and 52,808.32

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Solution

The fourth proportional to 171,139.60, 256,716.68 and 52,808.32 is: 79,214.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,139.60 : 256,716.68 = 52,808.32 : x
  2. Step 2: Convert to fraction form
    171,139.60/256,716.68 = 52,808.32/x
  3. Step 3: Cross multiply
    171,139.60x = 256,716.68 × 52,808.32
  4. Step 4: Simplify right side
    171,139.60x = 13,556,776,586.78
  5. Step 5: Solve for x
    x = 13,556,776,586.78/171,139.60
  6. Step 6: Final answer
    x = 79,214.73

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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.