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Finding the Fourth Proportional to 401,156.69, 553,514.45 and 237,741.21

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Solution

The fourth proportional to 401,156.69, 553,514.45 and 237,741.21 is: 328,034.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,156.69 : 553,514.45 = 237,741.21 : x
  2. Step 2: Convert to fraction form
    401,156.69/553,514.45 = 237,741.21/x
  3. Step 3: Cross multiply
    401,156.69x = 553,514.45 × 237,741.21
  4. Step 4: Simplify right side
    401,156.69x = 131,593,193,906.78
  5. Step 5: Solve for x
    x = 131,593,193,906.78/401,156.69
  6. Step 6: Final answer
    x = 328,034.40

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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.