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Finding the Fourth Proportional to 216,755.01, 299,114.91 and 121,259.61

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Solution

The fourth proportional to 216,755.01, 299,114.91 and 121,259.61 is: 167,334.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,755.01 : 299,114.91 = 121,259.61 : x
  2. Step 2: Convert to fraction form
    216,755.01/299,114.91 = 121,259.61/x
  3. Step 3: Cross multiply
    216,755.01x = 299,114.91 × 121,259.61
  4. Step 4: Simplify right side
    216,755.01x = 36,270,557,331.79
  5. Step 5: Solve for x
    x = 36,270,557,331.79/216,755.01
  6. Step 6: Final answer
    x = 167,334.34

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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.