Home / 258,450.14-387,641.19-89,934.50

Finding the Fourth Proportional to 258,450.14, 387,641.19 and 89,934.50

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Solution

The fourth proportional to 258,450.14, 387,641.19 and 89,934.50 is: 134,889.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,450.14 : 387,641.19 = 89,934.50 : x
  2. Step 2: Convert to fraction form
    258,450.14/387,641.19 = 89,934.50/x
  3. Step 3: Cross multiply
    258,450.14x = 387,641.19 × 89,934.50
  4. Step 4: Simplify right side
    258,450.14x = 34,862,317,908.41
  5. Step 5: Solve for x
    x = 34,862,317,908.41/258,450.14
  6. Step 6: Final answer
    x = 134,889.92

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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.