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Finding the Fourth Proportional to 248,415.20, 372,637.20 and 70,935.20

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Solution

The fourth proportional to 248,415.20, 372,637.20 and 70,935.20 is: 106,406.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,415.20 : 372,637.20 = 70,935.20 : x
  2. Step 2: Convert to fraction form
    248,415.20/372,637.20 = 70,935.20/x
  3. Step 3: Cross multiply
    248,415.20x = 372,637.20 × 70,935.20
  4. Step 4: Simplify right side
    248,415.20x = 26,433,094,309.44
  5. Step 5: Solve for x
    x = 26,433,094,309.44/248,415.20
  6. Step 6: Final answer
    x = 106,406.91

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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.