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Finding the Fourth Proportional to 247,002.54, 340,675.40 and 212,605.80

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Solution

The fourth proportional to 247,002.54, 340,675.40 and 212,605.80 is: 293,234.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,002.54 : 340,675.40 = 212,605.80 : x
  2. Step 2: Convert to fraction form
    247,002.54/340,675.40 = 212,605.80/x
  3. Step 3: Cross multiply
    247,002.54x = 340,675.40 × 212,605.80
  4. Step 4: Simplify right side
    247,002.54x = 72,429,565,957.32
  5. Step 5: Solve for x
    x = 72,429,565,957.32/247,002.54
  6. Step 6: Final answer
    x = 293,234.09

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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.