Home / 307,860.20-461,790.30-208,068.20

Finding the Fourth Proportional to 307,860.20, 461,790.30 and 208,068.20

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Solution

The fourth proportional to 307,860.20, 461,790.30 and 208,068.20 is: 312,102.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,860.20 : 461,790.30 = 208,068.20 : x
  2. Step 2: Convert to fraction form
    307,860.20/461,790.30 = 208,068.20/x
  3. Step 3: Cross multiply
    307,860.20x = 461,790.30 × 208,068.20
  4. Step 4: Simplify right side
    307,860.20x = 96,083,876,498.46
  5. Step 5: Solve for x
    x = 96,083,876,498.46/307,860.20
  6. Step 6: Final answer
    x = 312,102.30

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1.5x scale

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.