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Finding the Fourth Proportional to 216,810.96, 299,126.46 and 126,147.51

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Solution

The fourth proportional to 216,810.96, 299,126.46 and 126,147.51 is: 174,041.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,810.96 : 299,126.46 = 126,147.51 : x
  2. Step 2: Convert to fraction form
    216,810.96/299,126.46 = 126,147.51/x
  3. Step 3: Cross multiply
    216,810.96x = 299,126.46 × 126,147.51
  4. Step 4: Simplify right side
    216,810.96x = 37,734,058,104.11
  5. Step 5: Solve for x
    x = 37,734,058,104.11/216,810.96
  6. Step 6: Final answer
    x = 174,041.29

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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.