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Finding the Fourth Proportional to 365,693, 503,603.78 and 301,440.36

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Solution

The fourth proportional to 365,693, 503,603.78 and 301,440.36 is: 415,120.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,693 : 503,603.78 = 301,440.36 : x
  2. Step 2: Convert to fraction form
    365,693/503,603.78 = 301,440.36/x
  3. Step 3: Cross multiply
    365,693x = 503,603.78 × 301,440.36
  4. Step 4: Simplify right side
    365,693x = 151,806,504,740.56
  5. Step 5: Solve for x
    x = 151,806,504,740.56/365,693
  6. Step 6: Final answer
    x = 415,120.07

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1.5x scale

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.