Home / 378,271.23-567,296.10-311,545.86

Finding the Fourth Proportional to 378,271.23, 567,296.10 and 311,545.86

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Solution

The fourth proportional to 378,271.23, 567,296.10 and 311,545.86 is: 467,227.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,271.23 : 567,296.10 = 311,545.86 : x
  2. Step 2: Convert to fraction form
    378,271.23/567,296.10 = 311,545.86/x
  3. Step 3: Cross multiply
    378,271.23x = 567,296.10 × 311,545.86
  4. Step 4: Simplify right side
    378,271.23x = 176,738,751,349.15
  5. Step 5: Solve for x
    x = 176,738,751,349.15/378,271.23
  6. Step 6: Final answer
    x = 467,227.58

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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.