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Finding the Fourth Proportional to 345,658.33, 477,017.25 and 192,721.42

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Solution

The fourth proportional to 345,658.33, 477,017.25 and 192,721.42 is: 265,960.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,658.33 : 477,017.25 = 192,721.42 : x
  2. Step 2: Convert to fraction form
    345,658.33/477,017.25 = 192,721.42/x
  3. Step 3: Cross multiply
    345,658.33x = 477,017.25 × 192,721.42
  4. Step 4: Simplify right side
    345,658.33x = 91,931,441,784.50
  5. Step 5: Solve for x
    x = 91,931,441,784.50/345,658.33
  6. Step 6: Final answer
    x = 265,960.44

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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.