Home / 319,071.18-478,792.80-119,531.73

Finding the Fourth Proportional to 319,071.18, 478,792.80 and 119,531.73

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Solution

The fourth proportional to 319,071.18, 478,792.80 and 119,531.73 is: 179,367.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,071.18 : 478,792.80 = 119,531.73 : x
  2. Step 2: Convert to fraction form
    319,071.18/478,792.80 = 119,531.73/x
  3. Step 3: Cross multiply
    319,071.18x = 478,792.80 × 119,531.73
  4. Step 4: Simplify right side
    319,071.18x = 57,230,931,695.54
  5. Step 5: Solve for x
    x = 57,230,931,695.54/319,071.18
  6. Step 6: Final answer
    x = 179,367.29

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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.