Home / 403,401.20-556,689.02-222,109.40

Finding the Fourth Proportional to 403,401.20, 556,689.02 and 222,109.40

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Solution

The fourth proportional to 403,401.20, 556,689.02 and 222,109.40 is: 306,508.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,401.20 : 556,689.02 = 222,109.40 : x
  2. Step 2: Convert to fraction form
    403,401.20/556,689.02 = 222,109.40/x
  3. Step 3: Cross multiply
    403,401.20x = 556,689.02 × 222,109.40
  4. Step 4: Simplify right side
    403,401.20x = 123,645,864,218.79
  5. Step 5: Solve for x
    x = 123,645,864,218.79/403,401.20
  6. Step 6: Final answer
    x = 306,508.42

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1.5x scale

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.