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Finding the Fourth Proportional to 247,973.78, 371,750.47 and 98,319.80

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Solution

The fourth proportional to 247,973.78, 371,750.47 and 98,319.80 is: 147,396.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,973.78 : 371,750.47 = 98,319.80 : x
  2. Step 2: Convert to fraction form
    247,973.78/371,750.47 = 98,319.80/x
  3. Step 3: Cross multiply
    247,973.78x = 371,750.47 × 98,319.80
  4. Step 4: Simplify right side
    247,973.78x = 36,550,431,860.31
  5. Step 5: Solve for x
    x = 36,550,431,860.31/247,973.78
  6. Step 6: Final answer
    x = 147,396.36

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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.