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Finding the Fourth Proportional to 365,071.52, 503,610 and 231,013.28

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Solution

The fourth proportional to 365,071.52, 503,610 and 231,013.28 is: 318,678.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,071.52 : 503,610 = 231,013.28 : x
  2. Step 2: Convert to fraction form
    365,071.52/503,610 = 231,013.28/x
  3. Step 3: Cross multiply
    365,071.52x = 503,610 × 231,013.28
  4. Step 4: Simplify right side
    365,071.52x = 116,340,597,940.80
  5. Step 5: Solve for x
    x = 116,340,597,940.80/365,071.52
  6. Step 6: Final answer
    x = 318,678.92

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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.