Home / 643,583.68-965,381.34-163,812.02

Finding the Fourth Proportional to 643,583.68, 965,381.34 and 163,812.02

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Solution

The fourth proportional to 643,583.68, 965,381.34 and 163,812.02 is: 245,719.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,583.68 : 965,381.34 = 163,812.02 : x
  2. Step 2: Convert to fraction form
    643,583.68/965,381.34 = 163,812.02/x
  3. Step 3: Cross multiply
    643,583.68x = 965,381.34 × 163,812.02
  4. Step 4: Simplify right side
    643,583.68x = 158,141,067,671.92
  5. Step 5: Solve for x
    x = 158,141,067,671.92/643,583.68
  6. Step 6: Final answer
    x = 245,719.51

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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.