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Finding the Fourth Proportional to 247,248.63, 370,901.88 and 78,709.89

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Solution

The fourth proportional to 247,248.63, 370,901.88 and 78,709.89 is: 118,074.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,248.63 : 370,901.88 = 78,709.89 : x
  2. Step 2: Convert to fraction form
    247,248.63/370,901.88 = 78,709.89/x
  3. Step 3: Cross multiply
    247,248.63x = 370,901.88 × 78,709.89
  4. Step 4: Simplify right side
    247,248.63x = 29,193,646,175.59
  5. Step 5: Solve for x
    x = 29,193,646,175.59/247,248.63
  6. Step 6: Final answer
    x = 118,074.05

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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.