Home / 378,837.08-568,233.29-142,159.76

Finding the Fourth Proportional to 378,837.08, 568,233.29 and 142,159.76

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Solution

The fourth proportional to 378,837.08, 568,233.29 and 142,159.76 is: 213,231.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,837.08 : 568,233.29 = 142,159.76 : x
  2. Step 2: Convert to fraction form
    378,837.08/568,233.29 = 142,159.76/x
  3. Step 3: Cross multiply
    378,837.08x = 568,233.29 × 142,159.76
  4. Step 4: Simplify right side
    378,837.08x = 80,779,905,644.64
  5. Step 5: Solve for x
    x = 80,779,905,644.64/378,837.08
  6. Step 6: Final answer
    x = 213,231.26

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.