Home / 319,301.35-478,813.23-91,546.81

Finding the Fourth Proportional to 319,301.35, 478,813.23 and 91,546.81

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Solution

The fourth proportional to 319,301.35, 478,813.23 and 91,546.81 is: 137,280.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,301.35 : 478,813.23 = 91,546.81 : x
  2. Step 2: Convert to fraction form
    319,301.35/478,813.23 = 91,546.81/x
  3. Step 3: Cross multiply
    319,301.35x = 478,813.23 × 91,546.81
  4. Step 4: Simplify right side
    319,301.35x = 43,833,823,792.30
  5. Step 5: Solve for x
    x = 43,833,823,792.30/319,301.35
  6. Step 6: Final answer
    x = 137,280.42

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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.