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Finding the Fourth Proportional to 198,240.81, 297,392.31 and 65,090.76

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Solution

The fourth proportional to 198,240.81, 297,392.31 and 65,090.76 is: 97,646.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,240.81 : 297,392.31 = 65,090.76 : x
  2. Step 2: Convert to fraction form
    198,240.81/297,392.31 = 65,090.76/x
  3. Step 3: Cross multiply
    198,240.81x = 297,392.31 × 65,090.76
  4. Step 4: Simplify right side
    198,240.81x = 19,357,491,476.06
  5. Step 5: Solve for x
    x = 19,357,491,476.06/198,240.81
  6. Step 6: Final answer
    x = 97,646.35

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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.