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Finding the Fourth Proportional to 247,333.30, 370,877.09 and 78,831.70

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Solution

The fourth proportional to 247,333.30, 370,877.09 and 78,831.70 is: 118,208.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,333.30 : 370,877.09 = 78,831.70 : x
  2. Step 2: Convert to fraction form
    247,333.30/370,877.09 = 78,831.70/x
  3. Step 3: Cross multiply
    247,333.30x = 370,877.09 × 78,831.70
  4. Step 4: Simplify right side
    247,333.30x = 29,236,871,495.75
  5. Step 5: Solve for x
    x = 29,236,871,495.75/247,333.30
  6. Step 6: Final answer
    x = 118,208.39

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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.