Home / 239,500.86-330,497.19-137,502.78

Finding the Fourth Proportional to 239,500.86, 330,497.19 and 137,502.78

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Solution

The fourth proportional to 239,500.86, 330,497.19 and 137,502.78 is: 189,745.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,500.86 : 330,497.19 = 137,502.78 : x
  2. Step 2: Convert to fraction form
    239,500.86/330,497.19 = 137,502.78/x
  3. Step 3: Cross multiply
    239,500.86x = 330,497.19 × 137,502.78
  4. Step 4: Simplify right side
    239,500.86x = 45,444,282,407.19
  5. Step 5: Solve for x
    x = 45,444,282,407.19/239,500.86
  6. Step 6: Final answer
    x = 189,745.80

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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.