Home / 198,388.32-297,473.13-103,381.41

Finding the Fourth Proportional to 198,388.32, 297,473.13 and 103,381.41

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Solution

The fourth proportional to 198,388.32, 297,473.13 and 103,381.41 is: 155,015.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,388.32 : 297,473.13 = 103,381.41 : x
  2. Step 2: Convert to fraction form
    198,388.32/297,473.13 = 103,381.41/x
  3. Step 3: Cross multiply
    198,388.32x = 297,473.13 × 103,381.41
  4. Step 4: Simplify right side
    198,388.32x = 30,753,191,616.51
  5. Step 5: Solve for x
    x = 30,753,191,616.51/198,388.32
  6. Step 6: Final answer
    x = 155,015.13

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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.