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Finding the Fourth Proportional to 538,109.20, 807,163.80 and 301,913.20

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Solution

The fourth proportional to 538,109.20, 807,163.80 and 301,913.20 is: 452,869.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,109.20 : 807,163.80 = 301,913.20 : x
  2. Step 2: Convert to fraction form
    538,109.20/807,163.80 = 301,913.20/x
  3. Step 3: Cross multiply
    538,109.20x = 807,163.80 × 301,913.20
  4. Step 4: Simplify right side
    538,109.20x = 243,693,405,782.16
  5. Step 5: Solve for x
    x = 243,693,405,782.16/538,109.20
  6. Step 6: Final answer
    x = 452,869.80

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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.