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Finding the Fourth Proportional to 557,376.78, 836,068 and 136,653.06

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Solution

The fourth proportional to 557,376.78, 836,068 and 136,653.06 is: 204,980.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,376.78 : 836,068 = 136,653.06 : x
  2. Step 2: Convert to fraction form
    557,376.78/836,068 = 136,653.06/x
  3. Step 3: Cross multiply
    557,376.78x = 836,068 × 136,653.06
  4. Step 4: Simplify right side
    557,376.78x = 114,251,250,568.08
  5. Step 5: Solve for x
    x = 114,251,250,568.08/557,376.78
  6. Step 6: Final answer
    x = 204,980.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.