Home / 258,324.80-387,257.56-100,516.34

Finding the Fourth Proportional to 258,324.80, 387,257.56 and 100,516.34

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Solution

The fourth proportional to 258,324.80, 387,257.56 and 100,516.34 is: 150,685.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,324.80 : 387,257.56 = 100,516.34 : x
  2. Step 2: Convert to fraction form
    258,324.80/387,257.56 = 100,516.34/x
  3. Step 3: Cross multiply
    258,324.80x = 387,257.56 × 100,516.34
  4. Step 4: Simplify right side
    258,324.80x = 38,925,713,285.38
  5. Step 5: Solve for x
    x = 38,925,713,285.38/258,324.80
  6. Step 6: Final answer
    x = 150,685.16

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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.