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Finding the Fourth Proportional to 216,796.69, 299,191.49 and 126,154.45

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Solution

The fourth proportional to 216,796.69, 299,191.49 and 126,154.45 is: 174,100.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,796.69 : 299,191.49 = 126,154.45 : x
  2. Step 2: Convert to fraction form
    216,796.69/299,191.49 = 126,154.45/x
  3. Step 3: Cross multiply
    216,796.69x = 299,191.49 × 126,154.45
  4. Step 4: Simplify right side
    216,796.69x = 37,744,337,865.63
  5. Step 5: Solve for x
    x = 37,744,337,865.63/216,796.69
  6. Step 6: Final answer
    x = 174,100.16

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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.