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Finding the Fourth Proportional to 283,622.82, 425,696.71 and 143,479.86

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Solution

The fourth proportional to 283,622.82, 425,696.71 and 143,479.86 is: 215,352.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,622.82 : 425,696.71 = 143,479.86 : x
  2. Step 2: Convert to fraction form
    283,622.82/425,696.71 = 143,479.86/x
  3. Step 3: Cross multiply
    283,622.82x = 425,696.71 × 143,479.86
  4. Step 4: Simplify right side
    283,622.82x = 61,078,904,353.26
  5. Step 5: Solve for x
    x = 61,078,904,353.26/283,622.82
  6. Step 6: Final answer
    x = 215,352.57

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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.