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Finding the Fourth Proportional to 385,576.22, 531,994.29 and 222,192.74

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Solution

The fourth proportional to 385,576.22, 531,994.29 and 222,192.74 is: 306,567.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,576.22 : 531,994.29 = 222,192.74 : x
  2. Step 2: Convert to fraction form
    385,576.22/531,994.29 = 222,192.74/x
  3. Step 3: Cross multiply
    385,576.22x = 531,994.29 × 222,192.74
  4. Step 4: Simplify right side
    385,576.22x = 118,205,268,959.46
  5. Step 5: Solve for x
    x = 118,205,268,959.46/385,576.22
  6. Step 6: Final answer
    x = 306,567.84

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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.