Home / 320,108.38-480,228.86-130,569.28

Finding the Fourth Proportional to 320,108.38, 480,228.86 and 130,569.28

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Solution

The fourth proportional to 320,108.38, 480,228.86 and 130,569.28 is: 195,880.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,108.38 : 480,228.86 = 130,569.28 : x
  2. Step 2: Convert to fraction form
    320,108.38/480,228.86 = 130,569.28/x
  3. Step 3: Cross multiply
    320,108.38x = 480,228.86 × 130,569.28
  4. Step 4: Simplify right side
    320,108.38x = 62,703,135,611.27
  5. Step 5: Solve for x
    x = 62,703,135,611.27/320,108.38
  6. Step 6: Final answer
    x = 195,880.96

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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.