Home / 207,789.20-311,683.80-181,545.20

Finding the Fourth Proportional to 207,789.20, 311,683.80 and 181,545.20

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Solution

The fourth proportional to 207,789.20, 311,683.80 and 181,545.20 is: 272,317.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,789.20 : 311,683.80 = 181,545.20 : x
  2. Step 2: Convert to fraction form
    207,789.20/311,683.80 = 181,545.20/x
  3. Step 3: Cross multiply
    207,789.20x = 311,683.80 × 181,545.20
  4. Step 4: Simplify right side
    207,789.20x = 56,584,697,807.76
  5. Step 5: Solve for x
    x = 56,584,697,807.76/207,789.20
  6. Step 6: Final answer
    x = 272,317.80

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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.