Home / 319,028.76-478,611.18-159,190.65

Finding the Fourth Proportional to 319,028.76, 478,611.18 and 159,190.65

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Solution

The fourth proportional to 319,028.76, 478,611.18 and 159,190.65 is: 238,819.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,028.76 : 478,611.18 = 159,190.65 : x
  2. Step 2: Convert to fraction form
    319,028.76/478,611.18 = 159,190.65/x
  3. Step 3: Cross multiply
    319,028.76x = 478,611.18 × 159,190.65
  4. Step 4: Simplify right side
    319,028.76x = 76,190,424,841.47
  5. Step 5: Solve for x
    x = 76,190,424,841.47/319,028.76
  6. Step 6: Final answer
    x = 238,819.93

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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.