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Finding the Fourth Proportional to 245,393.72, 368,098.78 and 67,885.86

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Solution

The fourth proportional to 245,393.72, 368,098.78 and 67,885.86 is: 101,831.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,393.72 : 368,098.78 = 67,885.86 : x
  2. Step 2: Convert to fraction form
    245,393.72/368,098.78 = 67,885.86/x
  3. Step 3: Cross multiply
    245,393.72x = 368,098.78 × 67,885.86
  4. Step 4: Simplify right side
    245,393.72x = 24,988,703,371.05
  5. Step 5: Solve for x
    x = 24,988,703,371.05/245,393.72
  6. Step 6: Final answer
    x = 101,831.06

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.