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Finding the Fourth Proportional to 216,864.95, 299,237.92 and 136,235.37

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Solution

The fourth proportional to 216,864.95, 299,237.92 and 136,235.37 is: 187,982.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,864.95 : 299,237.92 = 136,235.37 : x
  2. Step 2: Convert to fraction form
    216,864.95/299,237.92 = 136,235.37/x
  3. Step 3: Cross multiply
    216,864.95x = 299,237.92 × 136,235.37
  4. Step 4: Simplify right side
    216,864.95x = 40,766,788,230.73
  5. Step 5: Solve for x
    x = 40,766,788,230.73/216,864.95
  6. Step 6: Final answer
    x = 187,982.37

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1.5x scale

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.