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Finding the Fourth Proportional to 247,029.68, 340,918.26 and 139,609.64

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Solution

The fourth proportional to 247,029.68, 340,918.26 and 139,609.64 is: 192,671.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,029.68 : 340,918.26 = 139,609.64 : x
  2. Step 2: Convert to fraction form
    247,029.68/340,918.26 = 139,609.64/x
  3. Step 3: Cross multiply
    247,029.68x = 340,918.26 × 139,609.64
  4. Step 4: Simplify right side
    247,029.68x = 47,595,475,548.03
  5. Step 5: Solve for x
    x = 47,595,475,548.03/247,029.68
  6. Step 6: Final answer
    x = 192,671.08

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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.