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Finding the Fourth Proportional to 245,422.20, 368,133.30 and 243,672.60

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Solution

The fourth proportional to 245,422.20, 368,133.30 and 243,672.60 is: 365,508.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,422.20 : 368,133.30 = 243,672.60 : x
  2. Step 2: Convert to fraction form
    245,422.20/368,133.30 = 243,672.60/x
  3. Step 3: Cross multiply
    245,422.20x = 368,133.30 × 243,672.60
  4. Step 4: Simplify right side
    245,422.20x = 89,703,998,357.58
  5. Step 5: Solve for x
    x = 89,703,998,357.58/245,422.20
  6. Step 6: Final answer
    x = 365,508.90

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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.