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Finding the Fourth Proportional to 170,808.20, 256,212.30 and 52,479.35

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Solution

The fourth proportional to 170,808.20, 256,212.30 and 52,479.35 is: 78,719.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,808.20 : 256,212.30 = 52,479.35 : x
  2. Step 2: Convert to fraction form
    170,808.20/256,212.30 = 52,479.35/x
  3. Step 3: Cross multiply
    170,808.20x = 256,212.30 × 52,479.35
  4. Step 4: Simplify right side
    170,808.20x = 13,445,854,966.01
  5. Step 5: Solve for x
    x = 13,445,854,966.01/170,808.20
  6. Step 6: Final answer
    x = 78,719.03

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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.