Home / 326,856.40-490,271.20-90,193.03

Finding the Fourth Proportional to 326,856.40, 490,271.20 and 90,193.03

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Solution

The fourth proportional to 326,856.40, 490,271.20 and 90,193.03 is: 135,285.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,856.40 : 490,271.20 = 90,193.03 : x
  2. Step 2: Convert to fraction form
    326,856.40/490,271.20 = 90,193.03/x
  3. Step 3: Cross multiply
    326,856.40x = 490,271.20 × 90,193.03
  4. Step 4: Simplify right side
    326,856.40x = 44,219,045,049.74
  5. Step 5: Solve for x
    x = 44,219,045,049.74/326,856.40
  6. Step 6: Final answer
    x = 135,285.85

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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.