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Finding the Fourth Proportional to 307,205.88, 423,953.10 and 179,869.56

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Solution

The fourth proportional to 307,205.88, 423,953.10 and 179,869.56 is: 248,225.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,205.88 : 423,953.10 = 179,869.56 : x
  2. Step 2: Convert to fraction form
    307,205.88/423,953.10 = 179,869.56/x
  3. Step 3: Cross multiply
    307,205.88x = 423,953.10 × 179,869.56
  4. Step 4: Simplify right side
    307,205.88x = 76,256,257,557.64
  5. Step 5: Solve for x
    x = 76,256,257,557.64/307,205.88
  6. Step 6: Final answer
    x = 248,225.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.