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Finding the Fourth Proportional to 378,163.71, 567,234.07 and 153,518.72

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Solution

The fourth proportional to 378,163.71, 567,234.07 and 153,518.72 is: 230,273.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,163.71 : 567,234.07 = 153,518.72 : x
  2. Step 2: Convert to fraction form
    378,163.71/567,234.07 = 153,518.72/x
  3. Step 3: Cross multiply
    378,163.71x = 567,234.07 × 153,518.72
  4. Step 4: Simplify right side
    378,163.71x = 87,081,045,146.82
  5. Step 5: Solve for x
    x = 87,081,045,146.82/378,163.71
  6. Step 6: Final answer
    x = 230,273.40

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1.5x scale

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.