Home / 258,110.90-387,412.61-158,465.71

Finding the Fourth Proportional to 258,110.90, 387,412.61 and 158,465.71

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Solution

The fourth proportional to 258,110.90, 387,412.61 and 158,465.71 is: 237,849.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,110.90 : 387,412.61 = 158,465.71 : x
  2. Step 2: Convert to fraction form
    258,110.90/387,412.61 = 158,465.71/x
  3. Step 3: Cross multiply
    258,110.90x = 387,412.61 × 158,465.71
  4. Step 4: Simplify right side
    258,110.90x = 61,391,614,896.06
  5. Step 5: Solve for x
    x = 61,391,614,896.06/258,110.90
  6. Step 6: Final answer
    x = 237,849.76

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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.