Home / 326,154.70-489,280.65-115,775.02

Finding the Fourth Proportional to 326,154.70, 489,280.65 and 115,775.02

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Solution

The fourth proportional to 326,154.70, 489,280.65 and 115,775.02 is: 173,679.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,154.70 : 489,280.65 = 115,775.02 : x
  2. Step 2: Convert to fraction form
    326,154.70/489,280.65 = 115,775.02/x
  3. Step 3: Cross multiply
    326,154.70x = 489,280.65 × 115,775.02
  4. Step 4: Simplify right side
    326,154.70x = 56,646,477,039.36
  5. Step 5: Solve for x
    x = 56,646,477,039.36/326,154.70
  6. Step 6: Final answer
    x = 173,679.78

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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.