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Finding the Fourth Proportional to 347,494.73, 479,519.21 and 192,434.87

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Solution

The fourth proportional to 347,494.73, 479,519.21 and 192,434.87 is: 265,547.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,494.73 : 479,519.21 = 192,434.87 : x
  2. Step 2: Convert to fraction form
    347,494.73/479,519.21 = 192,434.87/x
  3. Step 3: Cross multiply
    347,494.73x = 479,519.21 × 192,434.87
  4. Step 4: Simplify right side
    347,494.73x = 92,276,218,518.74
  5. Step 5: Solve for x
    x = 92,276,218,518.74/347,494.73
  6. Step 6: Final answer
    x = 265,547.11

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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.