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Finding the Fourth Proportional to 243,429.48, 335,939.54 and 136,011.33

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Solution

The fourth proportional to 243,429.48, 335,939.54 and 136,011.33 is: 187,699.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,429.48 : 335,939.54 = 136,011.33 : x
  2. Step 2: Convert to fraction form
    243,429.48/335,939.54 = 136,011.33/x
  3. Step 3: Cross multiply
    243,429.48x = 335,939.54 × 136,011.33
  4. Step 4: Simplify right side
    243,429.48x = 45,691,582,954.93
  5. Step 5: Solve for x
    x = 45,691,582,954.93/243,429.48
  6. Step 6: Final answer
    x = 187,699.46

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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.