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Finding the Fourth Proportional to 319,599.07, 479,379.87 and 119,902.78

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Solution

The fourth proportional to 319,599.07, 479,379.87 and 119,902.78 is: 179,847.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,599.07 : 479,379.87 = 119,902.78 : x
  2. Step 2: Convert to fraction form
    319,599.07/479,379.87 = 119,902.78/x
  3. Step 3: Cross multiply
    319,599.07x = 479,379.87 × 119,902.78
  4. Step 4: Simplify right side
    319,599.07x = 57,478,979,688.26
  5. Step 5: Solve for x
    x = 57,478,979,688.26/319,599.07
  6. Step 6: Final answer
    x = 179,847.14

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1.5x scale

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.