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Finding the Fourth Proportional to 239,477.76, 359,112.55 and 68,661.86

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Solution

The fourth proportional to 239,477.76, 359,112.55 and 68,661.86 is: 102,962.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,477.76 : 359,112.55 = 68,661.86 : x
  2. Step 2: Convert to fraction form
    239,477.76/359,112.55 = 68,661.86/x
  3. Step 3: Cross multiply
    239,477.76x = 359,112.55 × 68,661.86
  4. Step 4: Simplify right side
    239,477.76x = 24,657,335,632.34
  5. Step 5: Solve for x
    x = 24,657,335,632.34/239,477.76
  6. Step 6: Final answer
    x = 102,962.95

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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.