Home / 316,862.20-436,977.54-215,035.48

Finding the Fourth Proportional to 316,862.20, 436,977.54 and 215,035.48

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Solution

The fourth proportional to 316,862.20, 436,977.54 and 215,035.48 is: 296,550.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,862.20 : 436,977.54 = 215,035.48 : x
  2. Step 2: Convert to fraction form
    316,862.20/436,977.54 = 215,035.48/x
  3. Step 3: Cross multiply
    316,862.20x = 436,977.54 × 215,035.48
  4. Step 4: Simplify right side
    316,862.20x = 93,965,675,063.12
  5. Step 5: Solve for x
    x = 93,965,675,063.12/316,862.20
  6. Step 6: Final answer
    x = 296,550.60

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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.