Home / 319,169.02-478,769.93-82,513.75

Finding the Fourth Proportional to 319,169.02, 478,769.93 and 82,513.75

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Solution

The fourth proportional to 319,169.02, 478,769.93 and 82,513.75 is: 123,774.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,169.02 : 478,769.93 = 82,513.75 : x
  2. Step 2: Convert to fraction form
    319,169.02/478,769.93 = 82,513.75/x
  3. Step 3: Cross multiply
    319,169.02x = 478,769.93 × 82,513.75
  4. Step 4: Simplify right side
    319,169.02x = 39,505,102,311.54
  5. Step 5: Solve for x
    x = 39,505,102,311.54/319,169.02
  6. Step 6: Final answer
    x = 123,774.86

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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.