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Finding the Fourth Proportional to 216,852.61, 299,440.30 and 136,306.07

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Solution

The fourth proportional to 216,852.61, 299,440.30 and 136,306.07 is: 188,217.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,852.61 : 299,440.30 = 136,306.07 : x
  2. Step 2: Convert to fraction form
    216,852.61/299,440.30 = 136,306.07/x
  3. Step 3: Cross multiply
    216,852.61x = 299,440.30 × 136,306.07
  4. Step 4: Simplify right side
    216,852.61x = 40,815,530,900.46
  5. Step 5: Solve for x
    x = 40,815,530,900.46/216,852.61
  6. Step 6: Final answer
    x = 188,217.85

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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.