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Finding the Fourth Proportional to 418,130.66, 627,237.34 and 133,749.80

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Solution

The fourth proportional to 418,130.66, 627,237.34 and 133,749.80 is: 200,637.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,130.66 : 627,237.34 = 133,749.80 : x
  2. Step 2: Convert to fraction form
    418,130.66/627,237.34 = 133,749.80/x
  3. Step 3: Cross multiply
    418,130.66x = 627,237.34 × 133,749.80
  4. Step 4: Simplify right side
    418,130.66x = 83,892,868,777.53
  5. Step 5: Solve for x
    x = 83,892,868,777.53/418,130.66
  6. Step 6: Final answer
    x = 200,637.93

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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.