Home / 258,177.30-387,417.51-108,406.07

Finding the Fourth Proportional to 258,177.30, 387,417.51 and 108,406.07

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Solution

The fourth proportional to 258,177.30, 387,417.51 and 108,406.07 is: 162,672.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,177.30 : 387,417.51 = 108,406.07 : x
  2. Step 2: Convert to fraction form
    258,177.30/387,417.51 = 108,406.07/x
  3. Step 3: Cross multiply
    258,177.30x = 387,417.51 × 108,406.07
  4. Step 4: Simplify right side
    258,177.30x = 41,998,409,708.29
  5. Step 5: Solve for x
    x = 41,998,409,708.29/258,177.30
  6. Step 6: Final answer
    x = 162,672.74

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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.