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Finding the Fourth Proportional to 343,422.88, 473,919.12 and 192,518.56

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Solution

The fourth proportional to 343,422.88, 473,919.12 and 192,518.56 is: 265,673.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,422.88 : 473,919.12 = 192,518.56 : x
  2. Step 2: Convert to fraction form
    343,422.88/473,919.12 = 192,518.56/x
  3. Step 3: Cross multiply
    343,422.88x = 473,919.12 × 192,518.56
  4. Step 4: Simplify right side
    343,422.88x = 91,238,226,538.87
  5. Step 5: Solve for x
    x = 91,238,226,538.87/343,422.88
  6. Step 6: Final answer
    x = 265,673.12

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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.