Home / 258,851.85-388,304.27-99,062.18

Finding the Fourth Proportional to 258,851.85, 388,304.27 and 99,062.18

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Solution

The fourth proportional to 258,851.85, 388,304.27 and 99,062.18 is: 148,603.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,851.85 : 388,304.27 = 99,062.18 : x
  2. Step 2: Convert to fraction form
    258,851.85/388,304.27 = 99,062.18/x
  3. Step 3: Cross multiply
    258,851.85x = 388,304.27 × 99,062.18
  4. Step 4: Simplify right side
    258,851.85x = 38,466,267,489.51
  5. Step 5: Solve for x
    x = 38,466,267,489.51/258,851.85
  6. Step 6: Final answer
    x = 148,603.41

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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.