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Finding the Fourth Proportional to 247,278.44, 370,913.60 and 78,796.50

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Solution

The fourth proportional to 247,278.44, 370,913.60 and 78,796.50 is: 118,193.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,278.44 : 370,913.60 = 78,796.50 : x
  2. Step 2: Convert to fraction form
    247,278.44/370,913.60 = 78,796.50/x
  3. Step 3: Cross multiply
    247,278.44x = 370,913.60 × 78,796.50
  4. Step 4: Simplify right side
    247,278.44x = 29,226,693,482.40
  5. Step 5: Solve for x
    x = 29,226,693,482.40/247,278.44
  6. Step 6: Final answer
    x = 118,193.46

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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.