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Finding the Fourth Proportional to 522,815.40, 784,223.10 and 167,865.30

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Solution

The fourth proportional to 522,815.40, 784,223.10 and 167,865.30 is: 251,797.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,815.40 : 784,223.10 = 167,865.30 : x
  2. Step 2: Convert to fraction form
    522,815.40/784,223.10 = 167,865.30/x
  3. Step 3: Cross multiply
    522,815.40x = 784,223.10 × 167,865.30
  4. Step 4: Simplify right side
    522,815.40x = 131,643,845,948.43
  5. Step 5: Solve for x
    x = 131,643,845,948.43/522,815.40
  6. Step 6: Final answer
    x = 251,797.95

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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.