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Finding the Fourth Proportional to 556,003.95, 833,689.97 and 218,862

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Solution

The fourth proportional to 556,003.95, 833,689.97 and 218,862 is: 328,168.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,003.95 : 833,689.97 = 218,862 : x
  2. Step 2: Convert to fraction form
    556,003.95/833,689.97 = 218,862/x
  3. Step 3: Cross multiply
    556,003.95x = 833,689.97 × 218,862
  4. Step 4: Simplify right side
    556,003.95x = 182,463,053,940.56
  5. Step 5: Solve for x
    x = 182,463,053,940.56/556,003.95
  6. Step 6: Final answer
    x = 328,168.63

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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.