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Finding the Fourth Proportional to 379,344.05, 523,488.68 and 207,258.32

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Solution

The fourth proportional to 379,344.05, 523,488.68 and 207,258.32 is: 286,013.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,344.05 : 523,488.68 = 207,258.32 : x
  2. Step 2: Convert to fraction form
    379,344.05/523,488.68 = 207,258.32/x
  3. Step 3: Cross multiply
    379,344.05x = 523,488.68 × 207,258.32
  4. Step 4: Simplify right side
    379,344.05x = 108,497,383,442.38
  5. Step 5: Solve for x
    x = 108,497,383,442.38/379,344.05
  6. Step 6: Final answer
    x = 286,013.14

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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.