Home / 328,101.22-492,088.94-138,499.25

Finding the Fourth Proportional to 328,101.22, 492,088.94 and 138,499.25

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Solution

The fourth proportional to 328,101.22, 492,088.94 and 138,499.25 is: 207,722.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,101.22 : 492,088.94 = 138,499.25 : x
  2. Step 2: Convert to fraction form
    328,101.22/492,088.94 = 138,499.25/x
  3. Step 3: Cross multiply
    328,101.22x = 492,088.94 × 138,499.25
  4. Step 4: Simplify right side
    328,101.22x = 68,153,948,430.80
  5. Step 5: Solve for x
    x = 68,153,948,430.80/328,101.22
  6. Step 6: Final answer
    x = 207,722.33

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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.