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Finding the Fourth Proportional to 247,777.47, 341,903.90 and 145,780.50

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Solution

The fourth proportional to 247,777.47, 341,903.90 and 145,780.50 is: 201,160.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,777.47 : 341,903.90 = 145,780.50 : x
  2. Step 2: Convert to fraction form
    247,777.47/341,903.90 = 145,780.50/x
  3. Step 3: Cross multiply
    247,777.47x = 341,903.90 × 145,780.50
  4. Step 4: Simplify right side
    247,777.47x = 49,842,921,493.95
  5. Step 5: Solve for x
    x = 49,842,921,493.95/247,777.47
  6. Step 6: Final answer
    x = 201,160.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.