Home / 643,611.14-965,385.35-238,882.13

Finding the Fourth Proportional to 643,611.14, 965,385.35 and 238,882.13

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Solution

The fourth proportional to 643,611.14, 965,385.35 and 238,882.13 is: 358,311.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,611.14 : 965,385.35 = 238,882.13 : x
  2. Step 2: Convert to fraction form
    643,611.14/965,385.35 = 238,882.13/x
  3. Step 3: Cross multiply
    643,611.14x = 965,385.35 × 238,882.13
  4. Step 4: Simplify right side
    643,611.14x = 230,613,302,657.46
  5. Step 5: Solve for x
    x = 230,613,302,657.46/643,611.14
  6. Step 6: Final answer
    x = 358,311.55

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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.