Home / 319,200.26-478,477.24-206,951.81

Finding the Fourth Proportional to 319,200.26, 478,477.24 and 206,951.81

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Solution

The fourth proportional to 319,200.26, 478,477.24 and 206,951.81 is: 310,218.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,200.26 : 478,477.24 = 206,951.81 : x
  2. Step 2: Convert to fraction form
    319,200.26/478,477.24 = 206,951.81/x
  3. Step 3: Cross multiply
    319,200.26x = 478,477.24 × 206,951.81
  4. Step 4: Simplify right side
    319,200.26x = 99,021,727,952.04
  5. Step 5: Solve for x
    x = 99,021,727,952.04/319,200.26
  6. Step 6: Final answer
    x = 310,218.20

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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.