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Finding the Fourth Proportional to 352,258, 528,276.12 and 115,545.64

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Solution

The fourth proportional to 352,258, 528,276.12 and 115,545.64 is: 173,282.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,258 : 528,276.12 = 115,545.64 : x
  2. Step 2: Convert to fraction form
    352,258/528,276.12 = 115,545.64/x
  3. Step 3: Cross multiply
    352,258x = 528,276.12 × 115,545.64
  4. Step 4: Simplify right side
    352,258x = 61,040,002,382.12
  5. Step 5: Solve for x
    x = 61,040,002,382.12/352,258
  6. Step 6: Final answer
    x = 173,282.09

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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.