Home / 371,451.20-557,176.80-318,307.10

Finding the Fourth Proportional to 371,451.20, 557,176.80 and 318,307.10

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Solution

The fourth proportional to 371,451.20, 557,176.80 and 318,307.10 is: 477,460.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,451.20 : 557,176.80 = 318,307.10 : x
  2. Step 2: Convert to fraction form
    371,451.20/557,176.80 = 318,307.10/x
  3. Step 3: Cross multiply
    371,451.20x = 557,176.80 × 318,307.10
  4. Step 4: Simplify right side
    371,451.20x = 177,353,331,395.28
  5. Step 5: Solve for x
    x = 177,353,331,395.28/371,451.20
  6. Step 6: Final answer
    x = 477,460.65

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Similar ratio
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1.5x scale

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.