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Finding the Fourth Proportional to 261,146.70, 360,249.80 and 170,555.69

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Solution

The fourth proportional to 261,146.70, 360,249.80 and 170,555.69 is: 235,280.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,146.70 : 360,249.80 = 170,555.69 : x
  2. Step 2: Convert to fraction form
    261,146.70/360,249.80 = 170,555.69/x
  3. Step 3: Cross multiply
    261,146.70x = 360,249.80 × 170,555.69
  4. Step 4: Simplify right side
    261,146.70x = 61,442,654,698.27
  5. Step 5: Solve for x
    x = 61,442,654,698.27/261,146.70
  6. Step 6: Final answer
    x = 235,280.23

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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.