Home / 320,985.32-481,476.80-96,344.78

Finding the Fourth Proportional to 320,985.32, 481,476.80 and 96,344.78

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Solution

The fourth proportional to 320,985.32, 481,476.80 and 96,344.78 is: 144,516.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,985.32 : 481,476.80 = 96,344.78 : x
  2. Step 2: Convert to fraction form
    320,985.32/481,476.80 = 96,344.78/x
  3. Step 3: Cross multiply
    320,985.32x = 481,476.80 × 96,344.78
  4. Step 4: Simplify right side
    320,985.32x = 46,387,776,371.10
  5. Step 5: Solve for x
    x = 46,387,776,371.10/320,985.32
  6. Step 6: Final answer
    x = 144,516.82

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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.