Home / 319,253.02-478,865.66-79,361.84

Finding the Fourth Proportional to 319,253.02, 478,865.66 and 79,361.84

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Solution

The fourth proportional to 319,253.02, 478,865.66 and 79,361.84 is: 119,039.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,253.02 : 478,865.66 = 79,361.84 : x
  2. Step 2: Convert to fraction form
    319,253.02/478,865.66 = 79,361.84/x
  3. Step 3: Cross multiply
    319,253.02x = 478,865.66 × 79,361.84
  4. Step 4: Simplify right side
    319,253.02x = 38,003,659,890.41
  5. Step 5: Solve for x
    x = 38,003,659,890.41/319,253.02
  6. Step 6: Final answer
    x = 119,039.31

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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.