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Finding the Fourth Proportional to 242,994.64, 335,326.13 and 135,561.91

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Solution

The fourth proportional to 242,994.64, 335,326.13 and 135,561.91 is: 187,071.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,994.64 : 335,326.13 = 135,561.91 : x
  2. Step 2: Convert to fraction form
    242,994.64/335,326.13 = 135,561.91/x
  3. Step 3: Cross multiply
    242,994.64x = 335,326.13 × 135,561.91
  4. Step 4: Simplify right side
    242,994.64x = 45,457,448,301.27
  5. Step 5: Solve for x
    x = 45,457,448,301.27/242,994.64
  6. Step 6: Final answer
    x = 187,071.82

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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.