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Finding the Fourth Proportional to 295,139.75, 442,374.06 and 259,531.29

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Solution

The fourth proportional to 295,139.75, 442,374.06 and 259,531.29 is: 389,001.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,139.75 : 442,374.06 = 259,531.29 : x
  2. Step 2: Convert to fraction form
    295,139.75/442,374.06 = 259,531.29/x
  3. Step 3: Cross multiply
    295,139.75x = 442,374.06 × 259,531.29
  4. Step 4: Simplify right side
    295,139.75x = 114,809,909,967.72
  5. Step 5: Solve for x
    x = 114,809,909,967.72/295,139.75
  6. Step 6: Final answer
    x = 389,001.85

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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.