Home / 361,971.25-499,533.68-218,703.61

Finding the Fourth Proportional to 361,971.25, 499,533.68 and 218,703.61

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Solution

The fourth proportional to 361,971.25, 499,533.68 and 218,703.61 is: 301,819.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,971.25 : 499,533.68 = 218,703.61 : x
  2. Step 2: Convert to fraction form
    361,971.25/499,533.68 = 218,703.61/x
  3. Step 3: Cross multiply
    361,971.25x = 499,533.68 × 218,703.61
  4. Step 4: Simplify right side
    361,971.25x = 109,249,819,132.59
  5. Step 5: Solve for x
    x = 109,249,819,132.59/361,971.25
  6. Step 6: Final answer
    x = 301,819.05

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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.