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Finding the Fourth Proportional to 243,495.65, 336,017.49 and 136,066.56

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Solution

The fourth proportional to 243,495.65, 336,017.49 and 136,066.56 is: 187,768.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,495.65 : 336,017.49 = 136,066.56 : x
  2. Step 2: Convert to fraction form
    243,495.65/336,017.49 = 136,066.56/x
  3. Step 3: Cross multiply
    243,495.65x = 336,017.49 × 136,066.56
  4. Step 4: Simplify right side
    243,495.65x = 45,720,743,964.13
  5. Step 5: Solve for x
    x = 45,720,743,964.13/243,495.65
  6. Step 6: Final answer
    x = 187,768.22

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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.