Home / 399,221.90-598,916.05-133,065.10

Finding the Fourth Proportional to 399,221.90, 598,916.05 and 133,065.10

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Solution

The fourth proportional to 399,221.90, 598,916.05 and 133,065.10 is: 199,625.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,221.90 : 598,916.05 = 133,065.10 : x
  2. Step 2: Convert to fraction form
    399,221.90/598,916.05 = 133,065.10/x
  3. Step 3: Cross multiply
    399,221.90x = 598,916.05 × 133,065.10
  4. Step 4: Simplify right side
    399,221.90x = 79,694,824,084.86
  5. Step 5: Solve for x
    x = 79,694,824,084.86/399,221.90
  6. Step 6: Final answer
    x = 199,625.38

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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.