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Finding the Fourth Proportional to 491,328.27, 736,992.77 and 136,342.63

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Solution

The fourth proportional to 491,328.27, 736,992.77 and 136,342.63 is: 204,514.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,328.27 : 736,992.77 = 136,342.63 : x
  2. Step 2: Convert to fraction form
    491,328.27/736,992.77 = 136,342.63/x
  3. Step 3: Cross multiply
    491,328.27x = 736,992.77 × 136,342.63
  4. Step 4: Simplify right side
    491,328.27x = 100,483,532,552.79
  5. Step 5: Solve for x
    x = 100,483,532,552.79/491,328.27
  6. Step 6: Final answer
    x = 204,514.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.