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Finding the Fourth Proportional to 242,990.70, 335,326.10 and 135,560.82

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Solution

The fourth proportional to 242,990.70, 335,326.10 and 135,560.82 is: 187,073.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,990.70 : 335,326.10 = 135,560.82 : x
  2. Step 2: Convert to fraction form
    242,990.70/335,326.10 = 135,560.82/x
  3. Step 3: Cross multiply
    242,990.70x = 335,326.10 × 135,560.82
  4. Step 4: Simplify right side
    242,990.70x = 45,457,081,083.40
  5. Step 5: Solve for x
    x = 45,457,081,083.40/242,990.70
  6. Step 6: Final answer
    x = 187,073.34

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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.