Home / 326,387.36-489,244.20-136,957.72

Finding the Fourth Proportional to 326,387.36, 489,244.20 and 136,957.72

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Solution

The fourth proportional to 326,387.36, 489,244.20 and 136,957.72 is: 205,295.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,387.36 : 489,244.20 = 136,957.72 : x
  2. Step 2: Convert to fraction form
    326,387.36/489,244.20 = 136,957.72/x
  3. Step 3: Cross multiply
    326,387.36x = 489,244.20 × 136,957.72
  4. Step 4: Simplify right side
    326,387.36x = 67,005,770,155.22
  5. Step 5: Solve for x
    x = 67,005,770,155.22/326,387.36
  6. Step 6: Final answer
    x = 205,295.24

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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.