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Finding the Fourth Proportional to 258,351.59, 356,482.11 and 143,627.04

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Solution

The fourth proportional to 258,351.59, 356,482.11 and 143,627.04 is: 198,181.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,351.59 : 356,482.11 = 143,627.04 : x
  2. Step 2: Convert to fraction form
    258,351.59/356,482.11 = 143,627.04/x
  3. Step 3: Cross multiply
    258,351.59x = 356,482.11 × 143,627.04
  4. Step 4: Simplify right side
    258,351.59x = 51,200,470,810.86
  5. Step 5: Solve for x
    x = 51,200,470,810.86/258,351.59
  6. Step 6: Final answer
    x = 198,181.36

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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.