Home / 421,582.33-581,839.90-237,858.61

Finding the Fourth Proportional to 421,582.33, 581,839.90 and 237,858.61

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Solution

The fourth proportional to 421,582.33, 581,839.90 and 237,858.61 is: 328,276.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,582.33 : 581,839.90 = 237,858.61 : x
  2. Step 2: Convert to fraction form
    421,582.33/581,839.90 = 237,858.61/x
  3. Step 3: Cross multiply
    421,582.33x = 581,839.90 × 237,858.61
  4. Step 4: Simplify right side
    421,582.33x = 138,395,629,856.54
  5. Step 5: Solve for x
    x = 138,395,629,856.54/421,582.33
  6. Step 6: Final answer
    x = 328,276.64

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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.