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Finding the Fourth Proportional to 371,838.38, 513,083.54 and 218,785.58

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Solution

The fourth proportional to 371,838.38, 513,083.54 and 218,785.58 is: 301,892.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,838.38 : 513,083.54 = 218,785.58 : x
  2. Step 2: Convert to fraction form
    371,838.38/513,083.54 = 218,785.58/x
  3. Step 3: Cross multiply
    371,838.38x = 513,083.54 × 218,785.58
  4. Step 4: Simplify right side
    371,838.38x = 112,255,279,887.35
  5. Step 5: Solve for x
    x = 112,255,279,887.35/371,838.38
  6. Step 6: Final answer
    x = 301,892.67

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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.