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Finding the Fourth Proportional to 247,908.40, 342,184.53 and 145,992.98

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Solution

The fourth proportional to 247,908.40, 342,184.53 and 145,992.98 is: 201,512.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,908.40 : 342,184.53 = 145,992.98 : x
  2. Step 2: Convert to fraction form
    247,908.40/342,184.53 = 145,992.98/x
  3. Step 3: Cross multiply
    247,908.40x = 342,184.53 × 145,992.98
  4. Step 4: Simplify right side
    247,908.40x = 49,956,539,244.60
  5. Step 5: Solve for x
    x = 49,956,539,244.60/247,908.40
  6. Step 6: Final answer
    x = 201,512.09

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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.