Home / 258,515.13-387,888.02-132,088.82

Finding the Fourth Proportional to 258,515.13, 387,888.02 and 132,088.82

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Solution

The fourth proportional to 258,515.13, 387,888.02 and 132,088.82 is: 198,192.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,515.13 : 387,888.02 = 132,088.82 : x
  2. Step 2: Convert to fraction form
    258,515.13/387,888.02 = 132,088.82/x
  3. Step 3: Cross multiply
    258,515.13x = 387,888.02 × 132,088.82
  4. Step 4: Simplify right side
    258,515.13x = 51,235,669,244.72
  5. Step 5: Solve for x
    x = 51,235,669,244.72/258,515.13
  6. Step 6: Final answer
    x = 198,192.15

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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.