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Finding the Fourth Proportional to 401,734.66, 554,653.55 and 248,935

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Solution

The fourth proportional to 401,734.66, 554,653.55 and 248,935 is: 343,691.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,734.66 : 554,653.55 = 248,935 : x
  2. Step 2: Convert to fraction form
    401,734.66/554,653.55 = 248,935/x
  3. Step 3: Cross multiply
    401,734.66x = 554,653.55 × 248,935
  4. Step 4: Simplify right side
    401,734.66x = 138,072,681,469.25
  5. Step 5: Solve for x
    x = 138,072,681,469.25/401,734.66
  6. Step 6: Final answer
    x = 343,691.24

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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.