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Finding the Fourth Proportional to 358,073, 494,141.28 and 207,179.72

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Solution

The fourth proportional to 358,073, 494,141.28 and 207,179.72 is: 285,908.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,073 : 494,141.28 = 207,179.72 : x
  2. Step 2: Convert to fraction form
    358,073/494,141.28 = 207,179.72/x
  3. Step 3: Cross multiply
    358,073x = 494,141.28 × 207,179.72
  4. Step 4: Simplify right side
    358,073x = 102,376,052,030.84
  5. Step 5: Solve for x
    x = 102,376,052,030.84/358,073
  6. Step 6: Final answer
    x = 285,908.33

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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.