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Finding the Fourth Proportional to 401,306.54, 553,859.37 and 248,393.52

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Solution

The fourth proportional to 401,306.54, 553,859.37 and 248,393.52 is: 342,817.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,306.54 : 553,859.37 = 248,393.52 : x
  2. Step 2: Convert to fraction form
    401,306.54/553,859.37 = 248,393.52/x
  3. Step 3: Cross multiply
    401,306.54x = 553,859.37 × 248,393.52
  4. Step 4: Simplify right side
    401,306.54x = 137,575,078,499.28
  5. Step 5: Solve for x
    x = 137,575,078,499.28/401,306.54
  6. Step 6: Final answer
    x = 342,817.94

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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.