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Finding the Fourth Proportional to 425,007.59, 637,558.09 and 211,829.17

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Solution

The fourth proportional to 425,007.59, 637,558.09 and 211,829.17 is: 317,767.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,007.59 : 637,558.09 = 211,829.17 : x
  2. Step 2: Convert to fraction form
    425,007.59/637,558.09 = 211,829.17/x
  3. Step 3: Cross multiply
    425,007.59x = 637,558.09 × 211,829.17
  4. Step 4: Simplify right side
    425,007.59x = 135,053,397,049.34
  5. Step 5: Solve for x
    x = 135,053,397,049.34/425,007.59
  6. Step 6: Final answer
    x = 317,767.03

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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.