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Finding the Fourth Proportional to 188,424.84, 260,040.78 and 107,877.72

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Solution

The fourth proportional to 188,424.84, 260,040.78 and 107,877.72 is: 148,879.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,424.84 : 260,040.78 = 107,877.72 : x
  2. Step 2: Convert to fraction form
    188,424.84/260,040.78 = 107,877.72/x
  3. Step 3: Cross multiply
    188,424.84x = 260,040.78 × 107,877.72
  4. Step 4: Simplify right side
    188,424.84x = 28,052,606,453.42
  5. Step 5: Solve for x
    x = 28,052,606,453.42/188,424.84
  6. Step 6: Final answer
    x = 148,879.56

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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.