Home / 258,916.77-388,424.16-101,135.25

Finding the Fourth Proportional to 258,916.77, 388,424.16 and 101,135.25

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Solution

The fourth proportional to 258,916.77, 388,424.16 and 101,135.25 is: 151,722.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,916.77 : 388,424.16 = 101,135.25 : x
  2. Step 2: Convert to fraction form
    258,916.77/388,424.16 = 101,135.25/x
  3. Step 3: Cross multiply
    258,916.77x = 388,424.16 × 101,135.25
  4. Step 4: Simplify right side
    258,916.77x = 39,283,374,527.64
  5. Step 5: Solve for x
    x = 39,283,374,527.64/258,916.77
  6. Step 6: Final answer
    x = 151,722.02

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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.