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Finding the Fourth Proportional to 247,041, 371,057.40 and 147,395.64

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Solution

The fourth proportional to 247,041, 371,057.40 and 147,395.64 is: 221,389.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,041 : 371,057.40 = 147,395.64 : x
  2. Step 2: Convert to fraction form
    247,041/371,057.40 = 147,395.64/x
  3. Step 3: Cross multiply
    247,041x = 371,057.40 × 147,395.64
  4. Step 4: Simplify right side
    247,041x = 54,692,242,949.74
  5. Step 5: Solve for x
    x = 54,692,242,949.74/247,041
  6. Step 6: Final answer
    x = 221,389.34

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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.