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Finding the Fourth Proportional to 243,872.46, 336,557.07 and 136,436.07

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Solution

The fourth proportional to 243,872.46, 336,557.07 and 136,436.07 is: 188,289.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,872.46 : 336,557.07 = 136,436.07 : x
  2. Step 2: Convert to fraction form
    243,872.46/336,557.07 = 136,436.07/x
  3. Step 3: Cross multiply
    243,872.46x = 336,557.07 × 136,436.07
  4. Step 4: Simplify right side
    243,872.46x = 45,918,523,961.51
  5. Step 5: Solve for x
    x = 45,918,523,961.51/243,872.46
  6. Step 6: Final answer
    x = 188,289.09

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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.