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Finding the Fourth Proportional to 312,756.36, 469,104.48 and 88,113.18

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Solution

The fourth proportional to 312,756.36, 469,104.48 and 88,113.18 is: 132,161.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,756.36 : 469,104.48 = 88,113.18 : x
  2. Step 2: Convert to fraction form
    312,756.36/469,104.48 = 88,113.18/x
  3. Step 3: Cross multiply
    312,756.36x = 469,104.48 × 88,113.18
  4. Step 4: Simplify right side
    312,756.36x = 41,334,287,485.05
  5. Step 5: Solve for x
    x = 41,334,287,485.05/312,756.36
  6. Step 6: Final answer
    x = 132,161.30

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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.