Home / 403,240.86-556,467.98-221,948.90

Finding the Fourth Proportional to 403,240.86, 556,467.98 and 221,948.90

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Solution

The fourth proportional to 403,240.86, 556,467.98 and 221,948.90 is: 306,287.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,240.86 : 556,467.98 = 221,948.90 : x
  2. Step 2: Convert to fraction form
    403,240.86/556,467.98 = 221,948.90/x
  3. Step 3: Cross multiply
    403,240.86x = 556,467.98 × 221,948.90
  4. Step 4: Simplify right side
    403,240.86x = 123,507,456,046.22
  5. Step 5: Solve for x
    x = 123,507,456,046.22/403,240.86
  6. Step 6: Final answer
    x = 306,287.06

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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.