Home / 258,450.95-387,517.66-100,495.28

Finding the Fourth Proportional to 258,450.95, 387,517.66 and 100,495.28

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Solution

The fourth proportional to 258,450.95, 387,517.66 and 100,495.28 is: 150,681.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,450.95 : 387,517.66 = 100,495.28 : x
  2. Step 2: Convert to fraction form
    258,450.95/387,517.66 = 100,495.28/x
  3. Step 3: Cross multiply
    258,450.95x = 387,517.66 × 100,495.28
  4. Step 4: Simplify right side
    258,450.95x = 38,943,695,746.64
  5. Step 5: Solve for x
    x = 38,943,695,746.64/258,450.95
  6. Step 6: Final answer
    x = 150,681.19

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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.