Home / 385,475.22-531,854.91-222,091.74

Finding the Fourth Proportional to 385,475.22, 531,854.91 and 222,091.74

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Solution

The fourth proportional to 385,475.22, 531,854.91 and 222,091.74 is: 306,428.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,475.22 : 531,854.91 = 222,091.74 : x
  2. Step 2: Convert to fraction form
    385,475.22/531,854.91 = 222,091.74/x
  3. Step 3: Cross multiply
    385,475.22x = 531,854.91 × 222,091.74
  4. Step 4: Simplify right side
    385,475.22x = 118,120,582,389.44
  5. Step 5: Solve for x
    x = 118,120,582,389.44/385,475.22
  6. Step 6: Final answer
    x = 306,428.47

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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.