Home / 326,298.78-489,353.46-136,754.18

Finding the Fourth Proportional to 326,298.78, 489,353.46 and 136,754.18

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Solution

The fourth proportional to 326,298.78, 489,353.46 and 136,754.18 is: 205,091.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,298.78 : 489,353.46 = 136,754.18 : x
  2. Step 2: Convert to fraction form
    326,298.78/489,353.46 = 136,754.18/x
  3. Step 3: Cross multiply
    326,298.78x = 489,353.46 × 136,754.18
  4. Step 4: Simplify right side
    326,298.78x = 66,921,131,152.46
  5. Step 5: Solve for x
    x = 66,921,131,152.46/326,298.78
  6. Step 6: Final answer
    x = 205,091.58

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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.