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Finding the Fourth Proportional to 261,245.78, 360,595.79 and 170,615.43

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Solution

The fourth proportional to 261,245.78, 360,595.79 and 170,615.43 is: 235,499.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,245.78 : 360,595.79 = 170,615.43 : x
  2. Step 2: Convert to fraction form
    261,245.78/360,595.79 = 170,615.43/x
  3. Step 3: Cross multiply
    261,245.78x = 360,595.79 × 170,615.43
  4. Step 4: Simplify right side
    261,245.78x = 61,523,204,913.96
  5. Step 5: Solve for x
    x = 61,523,204,913.96/261,245.78
  6. Step 6: Final answer
    x = 235,499.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.