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Finding the Fourth Proportional to 247,605.94, 371,300.75 and 87,628.72

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Solution

The fourth proportional to 247,605.94, 371,300.75 and 87,628.72 is: 131,404.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,605.94 : 371,300.75 = 87,628.72 : x
  2. Step 2: Convert to fraction form
    247,605.94/371,300.75 = 87,628.72/x
  3. Step 3: Cross multiply
    247,605.94x = 371,300.75 × 87,628.72
  4. Step 4: Simplify right side
    247,605.94x = 32,536,610,697.77
  5. Step 5: Solve for x
    x = 32,536,610,697.77/247,605.94
  6. Step 6: Final answer
    x = 131,404.81

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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.