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Finding the Fourth Proportional to 243,473.78, 335,995.50 and 136,048.34

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Solution

The fourth proportional to 243,473.78, 335,995.50 and 136,048.34 is: 187,747.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,473.78 : 335,995.50 = 136,048.34 : x
  2. Step 2: Convert to fraction form
    243,473.78/335,995.50 = 136,048.34/x
  3. Step 3: Cross multiply
    243,473.78x = 335,995.50 × 136,048.34
  4. Step 4: Simplify right side
    243,473.78x = 45,711,629,100.03
  5. Step 5: Solve for x
    x = 45,711,629,100.03/243,473.78
  6. Step 6: Final answer
    x = 187,747.65

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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.