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Finding the Fourth Proportional to 248,354.40, 372,270.74 and 121,819.44

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Solution

The fourth proportional to 248,354.40, 372,270.74 and 121,819.44 is: 182,601.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,354.40 : 372,270.74 = 121,819.44 : x
  2. Step 2: Convert to fraction form
    248,354.40/372,270.74 = 121,819.44/x
  3. Step 3: Cross multiply
    248,354.40x = 372,270.74 × 121,819.44
  4. Step 4: Simplify right side
    248,354.40x = 45,349,813,075.19
  5. Step 5: Solve for x
    x = 45,349,813,075.19/248,354.40
  6. Step 6: Final answer
    x = 182,601.21

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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.