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Finding the Fourth Proportional to 247,007.41, 340,865.78 and 139,575.13

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Solution

The fourth proportional to 247,007.41, 340,865.78 and 139,575.13 is: 192,611.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,007.41 : 340,865.78 = 139,575.13 : x
  2. Step 2: Convert to fraction form
    247,007.41/340,865.78 = 139,575.13/x
  3. Step 3: Cross multiply
    247,007.41x = 340,865.78 × 139,575.13
  4. Step 4: Simplify right side
    247,007.41x = 47,576,384,006.01
  5. Step 5: Solve for x
    x = 47,576,384,006.01/247,007.41
  6. Step 6: Final answer
    x = 192,611.16

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1.5x scale

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.