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Finding the Fourth Proportional to 492,353.70, 738,530.55 and 243,003.30

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Solution

The fourth proportional to 492,353.70, 738,530.55 and 243,003.30 is: 364,504.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,353.70 : 738,530.55 = 243,003.30 : x
  2. Step 2: Convert to fraction form
    492,353.70/738,530.55 = 243,003.30/x
  3. Step 3: Cross multiply
    492,353.70x = 738,530.55 × 243,003.30
  4. Step 4: Simplify right side
    492,353.70x = 179,465,360,800.82
  5. Step 5: Solve for x
    x = 179,465,360,800.82/492,353.70
  6. Step 6: Final answer
    x = 364,504.95

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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.