Home / 326,110.20-489,250.35-126,437.10

Finding the Fourth Proportional to 326,110.20, 489,250.35 and 126,437.10

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Solution

The fourth proportional to 326,110.20, 489,250.35 and 126,437.10 is: 189,688.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,110.20 : 489,250.35 = 126,437.10 : x
  2. Step 2: Convert to fraction form
    326,110.20/489,250.35 = 126,437.10/x
  3. Step 3: Cross multiply
    326,110.20x = 489,250.35 × 126,437.10
  4. Step 4: Simplify right side
    326,110.20x = 61,859,395,427.99
  5. Step 5: Solve for x
    x = 61,859,395,427.99/326,110.20
  6. Step 6: Final answer
    x = 189,688.62

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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.