Home / 378,027.42-521,676.63-208,260.06

Finding the Fourth Proportional to 378,027.42, 521,676.63 and 208,260.06

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Solution

The fourth proportional to 378,027.42, 521,676.63 and 208,260.06 is: 287,398.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,027.42 : 521,676.63 = 208,260.06 : x
  2. Step 2: Convert to fraction form
    378,027.42/521,676.63 = 208,260.06/x
  3. Step 3: Cross multiply
    378,027.42x = 521,676.63 × 208,260.06
  4. Step 4: Simplify right side
    378,027.42x = 108,644,406,264.40
  5. Step 5: Solve for x
    x = 108,644,406,264.40/378,027.42
  6. Step 6: Final answer
    x = 287,398.22

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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.