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Finding the Fourth Proportional to 418,148.20, 577,093.98 and 248,383

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Solution

The fourth proportional to 418,148.20, 577,093.98 and 248,383 is: 342,797.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,148.20 : 577,093.98 = 248,383 : x
  2. Step 2: Convert to fraction form
    418,148.20/577,093.98 = 248,383/x
  3. Step 3: Cross multiply
    418,148.20x = 577,093.98 × 248,383
  4. Step 4: Simplify right side
    418,148.20x = 143,340,334,034.34
  5. Step 5: Solve for x
    x = 143,340,334,034.34/418,148.20
  6. Step 6: Final answer
    x = 342,797.92

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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.