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Finding the Fourth Proportional to 248,417.20, 372,640.20 and 70,937.20

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Solution

The fourth proportional to 248,417.20, 372,640.20 and 70,937.20 is: 106,409.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,417.20 : 372,640.20 = 70,937.20 : x
  2. Step 2: Convert to fraction form
    248,417.20/372,640.20 = 70,937.20/x
  3. Step 3: Cross multiply
    248,417.20x = 372,640.20 × 70,937.20
  4. Step 4: Simplify right side
    248,417.20x = 26,434,052,395.44
  5. Step 5: Solve for x
    x = 26,434,052,395.44/248,417.20
  6. Step 6: Final answer
    x = 106,409.91

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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.