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Finding the Fourth Proportional to 518,880.20, 778,320.30 and 182,300.90

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Solution

The fourth proportional to 518,880.20, 778,320.30 and 182,300.90 is: 273,451.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,880.20 : 778,320.30 = 182,300.90 : x
  2. Step 2: Convert to fraction form
    518,880.20/778,320.30 = 182,300.90/x
  3. Step 3: Cross multiply
    518,880.20x = 778,320.30 × 182,300.90
  4. Step 4: Simplify right side
    518,880.20x = 141,888,491,178.27
  5. Step 5: Solve for x
    x = 141,888,491,178.27/518,880.20
  6. Step 6: Final answer
    x = 273,451.35

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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.