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Finding the Fourth Proportional to 319,711.69, 479,529.26 and 248,705.27

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Solution

The fourth proportional to 319,711.69, 479,529.26 and 248,705.27 is: 373,028.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,711.69 : 479,529.26 = 248,705.27 : x
  2. Step 2: Convert to fraction form
    319,711.69/479,529.26 = 248,705.27/x
  3. Step 3: Cross multiply
    319,711.69x = 479,529.26 × 248,705.27
  4. Step 4: Simplify right side
    319,711.69x = 119,261,454,081.20
  5. Step 5: Solve for x
    x = 119,261,454,081.20/319,711.69
  6. Step 6: Final answer
    x = 373,028.13

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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.