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Finding the Fourth Proportional to 451,964.92, 623,709.84 and 248,019.28

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Solution

The fourth proportional to 451,964.92, 623,709.84 and 248,019.28 is: 342,265.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,964.92 : 623,709.84 = 248,019.28 : x
  2. Step 2: Convert to fraction form
    451,964.92/623,709.84 = 248,019.28/x
  3. Step 3: Cross multiply
    451,964.92x = 623,709.84 × 248,019.28
  4. Step 4: Simplify right side
    451,964.92x = 154,692,065,445.72
  5. Step 5: Solve for x
    x = 154,692,065,445.72/451,964.92
  6. Step 6: Final answer
    x = 342,265.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.