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Finding the Fourth Proportional to 403,507.98, 556,840.98 and 222,218.34

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Solution

The fourth proportional to 403,507.98, 556,840.98 and 222,218.34 is: 306,661.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,507.98 : 556,840.98 = 222,218.34 : x
  2. Step 2: Convert to fraction form
    403,507.98/556,840.98 = 222,218.34/x
  3. Step 3: Cross multiply
    403,507.98x = 556,840.98 × 222,218.34
  4. Step 4: Simplify right side
    403,507.98x = 123,740,276,131.42
  5. Step 5: Solve for x
    x = 123,740,276,131.42/403,507.98
  6. Step 6: Final answer
    x = 306,661.29

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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.