Home / 371,454.20-557,181.30-318,310.10

Finding the Fourth Proportional to 371,454.20, 557,181.30 and 318,310.10

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Solution

The fourth proportional to 371,454.20, 557,181.30 and 318,310.10 is: 477,465.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,454.20 : 557,181.30 = 318,310.10 : x
  2. Step 2: Convert to fraction form
    371,454.20/557,181.30 = 318,310.10/x
  3. Step 3: Cross multiply
    371,454.20x = 557,181.30 × 318,310.10
  4. Step 4: Simplify right side
    371,454.20x = 177,356,435,321.13
  5. Step 5: Solve for x
    x = 177,356,435,321.13/371,454.20
  6. Step 6: Final answer
    x = 477,465.15

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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.