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Finding the Fourth Proportional to 294,240.87, 406,139.27 and 173,421.27

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Solution

The fourth proportional to 294,240.87, 406,139.27 and 173,421.27 is: 239,372.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    294,240.87 : 406,139.27 = 173,421.27 : x
  2. Step 2: Convert to fraction form
    294,240.87/406,139.27 = 173,421.27/x
  3. Step 3: Cross multiply
    294,240.87x = 406,139.27 × 173,421.27
  4. Step 4: Simplify right side
    294,240.87x = 70,433,187,133.17
  5. Step 5: Solve for x
    x = 70,433,187,133.17/294,240.87
  6. Step 6: Final answer
    x = 239,372.55

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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.