Home / 611,289.10-916,974.15-162,003.70

Finding the Fourth Proportional to 611,289.10, 916,974.15 and 162,003.70

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Solution

The fourth proportional to 611,289.10, 916,974.15 and 162,003.70 is: 243,016.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,289.10 : 916,974.15 = 162,003.70 : x
  2. Step 2: Convert to fraction form
    611,289.10/916,974.15 = 162,003.70/x
  3. Step 3: Cross multiply
    611,289.10x = 916,974.15 × 162,003.70
  4. Step 4: Simplify right side
    611,289.10x = 148,553,205,104.36
  5. Step 5: Solve for x
    x = 148,553,205,104.36/611,289.10
  6. Step 6: Final answer
    x = 243,016.28

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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.