Home / 258,529.01-387,790.61-100,868.18

Finding the Fourth Proportional to 258,529.01, 387,790.61 and 100,868.18

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Solution

The fourth proportional to 258,529.01, 387,790.61 and 100,868.18 is: 151,301.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,529.01 : 387,790.61 = 100,868.18 : x
  2. Step 2: Convert to fraction form
    258,529.01/387,790.61 = 100,868.18/x
  3. Step 3: Cross multiply
    258,529.01x = 387,790.61 × 100,868.18
  4. Step 4: Simplify right side
    258,529.01x = 39,115,730,608.50
  5. Step 5: Solve for x
    x = 39,115,730,608.50/258,529.01
  6. Step 6: Final answer
    x = 151,301.13

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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.