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Finding the Fourth Proportional to 243,996.89, 336,715.61 and 136,566.90

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Solution

The fourth proportional to 243,996.89, 336,715.61 and 136,566.90 is: 188,462.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,996.89 : 336,715.61 = 136,566.90 : x
  2. Step 2: Convert to fraction form
    243,996.89/336,715.61 = 136,566.90/x
  3. Step 3: Cross multiply
    243,996.89x = 336,715.61 × 136,566.90
  4. Step 4: Simplify right side
    243,996.89x = 45,984,206,356.47
  5. Step 5: Solve for x
    x = 45,984,206,356.47/243,996.89
  6. Step 6: Final answer
    x = 188,462.27

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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.