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Finding the Fourth Proportional to 378,398.02, 566,437.89 and 245,012.89

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Solution

The fourth proportional to 378,398.02, 566,437.89 and 245,012.89 is: 366,768.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,398.02 : 566,437.89 = 245,012.89 : x
  2. Step 2: Convert to fraction form
    378,398.02/566,437.89 = 245,012.89/x
  3. Step 3: Cross multiply
    378,398.02x = 566,437.89 × 245,012.89
  4. Step 4: Simplify right side
    378,398.02x = 138,784,584,434.40
  5. Step 5: Solve for x
    x = 138,784,584,434.40/378,398.02
  6. Step 6: Final answer
    x = 366,768.79

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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.