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Finding the Fourth Proportional to 386,484, 533,166.48 and 273,369.12

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Solution

The fourth proportional to 386,484, 533,166.48 and 273,369.12 is: 377,121.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,484 : 533,166.48 = 273,369.12 : x
  2. Step 2: Convert to fraction form
    386,484/533,166.48 = 273,369.12/x
  3. Step 3: Cross multiply
    386,484x = 533,166.48 × 273,369.12
  4. Step 4: Simplify right side
    386,484x = 145,751,251,451.10
  5. Step 5: Solve for x
    x = 145,751,251,451.10/386,484
  6. Step 6: Final answer
    x = 377,121.05

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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.