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Finding the Fourth Proportional to 247,395.93, 371,094.81 and 105,220.89

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Solution

The fourth proportional to 247,395.93, 371,094.81 and 105,220.89 is: 157,831.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,395.93 : 371,094.81 = 105,220.89 : x
  2. Step 2: Convert to fraction form
    247,395.93/371,094.81 = 105,220.89/x
  3. Step 3: Cross multiply
    247,395.93x = 371,094.81 × 105,220.89
  4. Step 4: Simplify right side
    247,395.93x = 39,046,926,182.58
  5. Step 5: Solve for x
    x = 39,046,926,182.58/247,395.93
  6. Step 6: Final answer
    x = 157,831.72

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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.