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Finding the Fourth Proportional to 404,743.75, 607,145.10 and 155,425.75

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Solution

The fourth proportional to 404,743.75, 607,145.10 and 155,425.75 is: 233,149.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,743.75 : 607,145.10 = 155,425.75 : x
  2. Step 2: Convert to fraction form
    404,743.75/607,145.10 = 155,425.75/x
  3. Step 3: Cross multiply
    404,743.75x = 607,145.10 × 155,425.75
  4. Step 4: Simplify right side
    404,743.75x = 94,365,982,526.33
  5. Step 5: Solve for x
    x = 94,365,982,526.33/404,743.75
  6. Step 6: Final answer
    x = 233,149.94

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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.