Home / 261,339.23-360,604.42-153,930.65

Finding the Fourth Proportional to 261,339.23, 360,604.42 and 153,930.65

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Solution

The fourth proportional to 261,339.23, 360,604.42 and 153,930.65 is: 212,398.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,339.23 : 360,604.42 = 153,930.65 : x
  2. Step 2: Convert to fraction form
    261,339.23/360,604.42 = 153,930.65/x
  3. Step 3: Cross multiply
    261,339.23x = 360,604.42 × 153,930.65
  4. Step 4: Simplify right side
    261,339.23x = 55,508,072,763.47
  5. Step 5: Solve for x
    x = 55,508,072,763.47/261,339.23
  6. Step 6: Final answer
    x = 212,398.55

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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.