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Finding the Fourth Proportional to 312,326.30, 468,487.87 and 75,669.01

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Solution

The fourth proportional to 312,326.30, 468,487.87 and 75,669.01 is: 113,503.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,326.30 : 468,487.87 = 75,669.01 : x
  2. Step 2: Convert to fraction form
    312,326.30/468,487.87 = 75,669.01/x
  3. Step 3: Cross multiply
    312,326.30x = 468,487.87 × 75,669.01
  4. Step 4: Simplify right side
    312,326.30x = 35,450,011,959.52
  5. Step 5: Solve for x
    x = 35,450,011,959.52/312,326.30
  6. Step 6: Final answer
    x = 113,503.13

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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.