Home / 303,534.30-455,429.03-163,128.90

Finding the Fourth Proportional to 303,534.30, 455,429.03 and 163,128.90

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Solution

The fourth proportional to 303,534.30, 455,429.03 and 163,128.90 is: 244,761.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,534.30 : 455,429.03 = 163,128.90 : x
  2. Step 2: Convert to fraction form
    303,534.30/455,429.03 = 163,128.90/x
  3. Step 3: Cross multiply
    303,534.30x = 455,429.03 × 163,128.90
  4. Step 4: Simplify right side
    303,534.30x = 74,293,635,876.32
  5. Step 5: Solve for x
    x = 74,293,635,876.32/303,534.30
  6. Step 6: Final answer
    x = 244,761.91

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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.