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Finding the Fourth Proportional to 303,687.60, 455,484.74 and 101,287.28

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Solution

The fourth proportional to 303,687.60, 455,484.74 and 101,287.28 is: 151,915.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,687.60 : 455,484.74 = 101,287.28 : x
  2. Step 2: Convert to fraction form
    303,687.60/455,484.74 = 101,287.28/x
  3. Step 3: Cross multiply
    303,687.60x = 455,484.74 × 101,287.28
  4. Step 4: Simplify right side
    303,687.60x = 46,134,810,396.11
  5. Step 5: Solve for x
    x = 46,134,810,396.11/303,687.60
  6. Step 6: Final answer
    x = 151,915.36

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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.