Home / 258,813.23-387,722.30-158,681.43

Finding the Fourth Proportional to 258,813.23, 387,722.30 and 158,681.43

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Solution

The fourth proportional to 258,813.23, 387,722.30 and 158,681.43 is: 237,717.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,813.23 : 387,722.30 = 158,681.43 : x
  2. Step 2: Convert to fraction form
    258,813.23/387,722.30 = 158,681.43/x
  3. Step 3: Cross multiply
    258,813.23x = 387,722.30 × 158,681.43
  4. Step 4: Simplify right side
    258,813.23x = 61,524,328,213.48
  5. Step 5: Solve for x
    x = 61,524,328,213.48/258,813.23
  6. Step 6: Final answer
    x = 237,717.10

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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.