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Finding the Fourth Proportional to 403,542.63, 556,866.99 and 222,219.12

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Solution

The fourth proportional to 403,542.63, 556,866.99 and 222,219.12 is: 306,650.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,542.63 : 556,866.99 = 222,219.12 : x
  2. Step 2: Convert to fraction form
    403,542.63/556,866.99 = 222,219.12/x
  3. Step 3: Cross multiply
    403,542.63x = 556,866.99 × 222,219.12
  4. Step 4: Simplify right side
    403,542.63x = 123,746,492,474.85
  5. Step 5: Solve for x
    x = 123,746,492,474.85/403,542.63
  6. Step 6: Final answer
    x = 306,650.36

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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.