Home / 307,823.20-461,734.80-208,031.20

Finding the Fourth Proportional to 307,823.20, 461,734.80 and 208,031.20

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Solution

The fourth proportional to 307,823.20, 461,734.80 and 208,031.20 is: 312,046.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,823.20 : 461,734.80 = 208,031.20 : x
  2. Step 2: Convert to fraction form
    307,823.20/461,734.80 = 208,031.20/x
  3. Step 3: Cross multiply
    307,823.20x = 461,734.80 × 208,031.20
  4. Step 4: Simplify right side
    307,823.20x = 96,055,244,525.76
  5. Step 5: Solve for x
    x = 96,055,244,525.76/307,823.20
  6. Step 6: Final answer
    x = 312,046.80

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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.