Home / 403,250.20-556,480.86-221,958.23

Finding the Fourth Proportional to 403,250.20, 556,480.86 and 221,958.23

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Solution

The fourth proportional to 403,250.20, 556,480.86 and 221,958.23 is: 306,299.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,250.20 : 556,480.86 = 221,958.23 : x
  2. Step 2: Convert to fraction form
    403,250.20/556,480.86 = 221,958.23/x
  3. Step 3: Cross multiply
    403,250.20x = 556,480.86 × 221,958.23
  4. Step 4: Simplify right side
    403,250.20x = 123,515,506,714.48
  5. Step 5: Solve for x
    x = 123,515,506,714.48/403,250.20
  6. Step 6: Final answer
    x = 306,299.93

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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.