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Finding the Fourth Proportional to 379,521.39, 569,262.65 and 113,284.11

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Solution

The fourth proportional to 379,521.39, 569,262.65 and 113,284.11 is: 169,920.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,521.39 : 569,262.65 = 113,284.11 : x
  2. Step 2: Convert to fraction form
    379,521.39/569,262.65 = 113,284.11/x
  3. Step 3: Cross multiply
    379,521.39x = 569,262.65 × 113,284.11
  4. Step 4: Simplify right side
    379,521.39x = 64,488,412,095.07
  5. Step 5: Solve for x
    x = 64,488,412,095.07/379,521.39
  6. Step 6: Final answer
    x = 169,920.36

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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.