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Finding the Fourth Proportional to 243,475.74, 335,994.48 and 136,044.54

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Solution

The fourth proportional to 243,475.74, 335,994.48 and 136,044.54 is: 187,740.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,475.74 : 335,994.48 = 136,044.54 : x
  2. Step 2: Convert to fraction form
    243,475.74/335,994.48 = 136,044.54/x
  3. Step 3: Cross multiply
    243,475.74x = 335,994.48 × 136,044.54
  4. Step 4: Simplify right side
    243,475.74x = 45,710,214,474.14
  5. Step 5: Solve for x
    x = 45,710,214,474.14/243,475.74
  6. Step 6: Final answer
    x = 187,740.32

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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.