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Finding the Fourth Proportional to 375,211.68, 517,795.42 and 222,258.58

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Solution

The fourth proportional to 375,211.68, 517,795.42 and 222,258.58 is: 306,718.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,211.68 : 517,795.42 = 222,258.58 : x
  2. Step 2: Convert to fraction form
    375,211.68/517,795.42 = 222,258.58/x
  3. Step 3: Cross multiply
    375,211.68x = 517,795.42 × 222,258.58
  4. Step 4: Simplify right side
    375,211.68x = 115,084,474,779.70
  5. Step 5: Solve for x
    x = 115,084,474,779.70/375,211.68
  6. Step 6: Final answer
    x = 306,718.80

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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.