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Finding the Fourth Proportional to 243,700.16, 336,304.32 and 136,270.40

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Solution

The fourth proportional to 243,700.16, 336,304.32 and 136,270.40 is: 188,052.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,700.16 : 336,304.32 = 136,270.40 : x
  2. Step 2: Convert to fraction form
    243,700.16/336,304.32 = 136,270.40/x
  3. Step 3: Cross multiply
    243,700.16x = 336,304.32 × 136,270.40
  4. Step 4: Simplify right side
    243,700.16x = 45,828,324,208.13
  5. Step 5: Solve for x
    x = 45,828,324,208.13/243,700.16
  6. Step 6: Final answer
    x = 188,052.09

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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.