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Finding the Fourth Proportional to 418,237.02, 627,317.06 and 137,754.27

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Solution

The fourth proportional to 418,237.02, 627,317.06 and 137,754.27 is: 206,618.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,237.02 : 627,317.06 = 137,754.27 : x
  2. Step 2: Convert to fraction form
    418,237.02/627,317.06 = 137,754.27/x
  3. Step 3: Cross multiply
    418,237.02x = 627,317.06 × 137,754.27
  4. Step 4: Simplify right side
    418,237.02x = 86,415,602,970.07
  5. Step 5: Solve for x
    x = 86,415,602,970.07/418,237.02
  6. Step 6: Final answer
    x = 206,618.73

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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.