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Finding the Fourth Proportional to 403,708.19, 557,114.63 and 222,415.88

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Solution

The fourth proportional to 403,708.19, 557,114.63 and 222,415.88 is: 306,932.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,708.19 : 557,114.63 = 222,415.88 : x
  2. Step 2: Convert to fraction form
    403,708.19/557,114.63 = 222,415.88/x
  3. Step 3: Cross multiply
    403,708.19x = 557,114.63 × 222,415.88
  4. Step 4: Simplify right side
    403,708.19x = 123,911,136,794.67
  5. Step 5: Solve for x
    x = 123,911,136,794.67/403,708.19
  6. Step 6: Final answer
    x = 306,932.44

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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.