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Finding the Fourth Proportional to 243,426.98, 335,936.08 and 136,008.84

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Solution

The fourth proportional to 243,426.98, 335,936.08 and 136,008.84 is: 187,696.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,426.98 : 335,936.08 = 136,008.84 : x
  2. Step 2: Convert to fraction form
    243,426.98/335,936.08 = 136,008.84/x
  3. Step 3: Cross multiply
    243,426.98x = 335,936.08 × 136,008.84
  4. Step 4: Simplify right side
    243,426.98x = 45,690,276,554.95
  5. Step 5: Solve for x
    x = 45,690,276,554.95/243,426.98
  6. Step 6: Final answer
    x = 187,696.03

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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.