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Finding the Fourth Proportional to 172,479.70, 258,719.55 and 151,743.70

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Solution

The fourth proportional to 172,479.70, 258,719.55 and 151,743.70 is: 227,615.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,479.70 : 258,719.55 = 151,743.70 : x
  2. Step 2: Convert to fraction form
    172,479.70/258,719.55 = 151,743.70/x
  3. Step 3: Cross multiply
    172,479.70x = 258,719.55 × 151,743.70
  4. Step 4: Simplify right side
    172,479.70x = 39,259,061,779.34
  5. Step 5: Solve for x
    x = 39,259,061,779.34/172,479.70
  6. Step 6: Final answer
    x = 227,615.55

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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.