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Finding the Fourth Proportional to 319,967.48, 480,091.36 and 151,608

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Solution

The fourth proportional to 319,967.48, 480,091.36 and 151,608 is: 227,478.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,967.48 : 480,091.36 = 151,608 : x
  2. Step 2: Convert to fraction form
    319,967.48/480,091.36 = 151,608/x
  3. Step 3: Cross multiply
    319,967.48x = 480,091.36 × 151,608
  4. Step 4: Simplify right side
    319,967.48x = 72,785,690,906.88
  5. Step 5: Solve for x
    x = 72,785,690,906.88/319,967.48
  6. Step 6: Final answer
    x = 227,478.40

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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.