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Finding the Fourth Proportional to 252,810, 379,277.40 and 75,316.32

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Solution

The fourth proportional to 252,810, 379,277.40 and 75,316.32 is: 112,993.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,810 : 379,277.40 = 75,316.32 : x
  2. Step 2: Convert to fraction form
    252,810/379,277.40 = 75,316.32/x
  3. Step 3: Cross multiply
    252,810x = 379,277.40 × 75,316.32
  4. Step 4: Simplify right side
    252,810x = 28,565,778,027.17
  5. Step 5: Solve for x
    x = 28,565,778,027.17/252,810
  6. Step 6: Final answer
    x = 112,993.07

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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.