Home / 326,902.10-490,381.36-90,244.80

Finding the Fourth Proportional to 326,902.10, 490,381.36 and 90,244.80

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Solution

The fourth proportional to 326,902.10, 490,381.36 and 90,244.80 is: 135,374.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,902.10 : 490,381.36 = 90,244.80 : x
  2. Step 2: Convert to fraction form
    326,902.10/490,381.36 = 90,244.80/x
  3. Step 3: Cross multiply
    326,902.10x = 490,381.36 × 90,244.80
  4. Step 4: Simplify right side
    326,902.10x = 44,254,367,531.32
  5. Step 5: Solve for x
    x = 44,254,367,531.32/326,902.10
  6. Step 6: Final answer
    x = 135,374.99

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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.