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Finding the Fourth Proportional to 378,832.41, 522,623.52 and 249,605.06

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Solution

The fourth proportional to 378,832.41, 522,623.52 and 249,605.06 is: 344,346.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,832.41 : 522,623.52 = 249,605.06 : x
  2. Step 2: Convert to fraction form
    378,832.41/522,623.52 = 249,605.06/x
  3. Step 3: Cross multiply
    378,832.41x = 522,623.52 × 249,605.06
  4. Step 4: Simplify right side
    378,832.41x = 130,449,472,453.89
  5. Step 5: Solve for x
    x = 130,449,472,453.89/378,832.41
  6. Step 6: Final answer
    x = 344,346.13

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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.