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Finding the Fourth Proportional to 402,094.95, 554,863.46 and 220,818.62

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Solution

The fourth proportional to 402,094.95, 554,863.46 and 220,818.62 is: 304,714.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,094.95 : 554,863.46 = 220,818.62 : x
  2. Step 2: Convert to fraction form
    402,094.95/554,863.46 = 220,818.62/x
  3. Step 3: Cross multiply
    402,094.95x = 554,863.46 × 220,818.62
  4. Step 4: Simplify right side
    402,094.95x = 122,524,179,647.22
  5. Step 5: Solve for x
    x = 122,524,179,647.22/402,094.95
  6. Step 6: Final answer
    x = 304,714.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.