Home / 547,403.20-821,099.10-173,426.20

Finding the Fourth Proportional to 547,403.20, 821,099.10 and 173,426.20

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Solution

The fourth proportional to 547,403.20, 821,099.10 and 173,426.20 is: 260,137.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,403.20 : 821,099.10 = 173,426.20 : x
  2. Step 2: Convert to fraction form
    547,403.20/821,099.10 = 173,426.20/x
  3. Step 3: Cross multiply
    547,403.20x = 821,099.10 × 173,426.20
  4. Step 4: Simplify right side
    547,403.20x = 142,400,096,736.42
  5. Step 5: Solve for x
    x = 142,400,096,736.42/547,403.20
  6. Step 6: Final answer
    x = 260,137.49

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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.