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Finding the Fourth Proportional to 248,455.56, 372,757.96 and 77,670.40

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Solution

The fourth proportional to 248,455.56, 372,757.96 and 77,670.40 is: 116,528.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,455.56 : 372,757.96 = 77,670.40 : x
  2. Step 2: Convert to fraction form
    248,455.56/372,757.96 = 77,670.40/x
  3. Step 3: Cross multiply
    248,455.56x = 372,757.96 × 77,670.40
  4. Step 4: Simplify right side
    248,455.56x = 28,952,259,856.38
  5. Step 5: Solve for x
    x = 28,952,259,856.38/248,455.56
  6. Step 6: Final answer
    x = 116,528.93

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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.