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Finding the Fourth Proportional to 448,703.46, 672,908.92 and 149,103.60

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Solution

The fourth proportional to 448,703.46, 672,908.92 and 149,103.60 is: 223,606.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,703.46 : 672,908.92 = 149,103.60 : x
  2. Step 2: Convert to fraction form
    448,703.46/672,908.92 = 149,103.60/x
  3. Step 3: Cross multiply
    448,703.46x = 672,908.92 × 149,103.60
  4. Step 4: Simplify right side
    448,703.46x = 100,333,142,444.11
  5. Step 5: Solve for x
    x = 100,333,142,444.11/448,703.46
  6. Step 6: Final answer
    x = 223,606.79

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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.