Home / 400,612.26-552,851.52-219,321.18

Finding the Fourth Proportional to 400,612.26, 552,851.52 and 219,321.18

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Solution

The fourth proportional to 400,612.26, 552,851.52 and 219,321.18 is: 302,666.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,612.26 : 552,851.52 = 219,321.18 : x
  2. Step 2: Convert to fraction form
    400,612.26/552,851.52 = 219,321.18/x
  3. Step 3: Cross multiply
    400,612.26x = 552,851.52 × 219,321.18
  4. Step 4: Simplify right side
    400,612.26x = 121,252,047,731.19
  5. Step 5: Solve for x
    x = 121,252,047,731.19/400,612.26
  6. Step 6: Final answer
    x = 302,666.84

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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.