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Finding the Fourth Proportional to 358,515, 494,774.33 and 207,612

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Solution

The fourth proportional to 358,515, 494,774.33 and 207,612 is: 286,518.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,515 : 494,774.33 = 207,612 : x
  2. Step 2: Convert to fraction form
    358,515/494,774.33 = 207,612/x
  3. Step 3: Cross multiply
    358,515x = 494,774.33 × 207,612
  4. Step 4: Simplify right side
    358,515x = 102,721,087,161.90
  5. Step 5: Solve for x
    x = 102,721,087,161.90/358,515
  6. Step 6: Final answer
    x = 286,518.24

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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.