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Finding the Fourth Proportional to 448,659.88, 672,737.48 and 148,980.09

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Solution

The fourth proportional to 448,659.88, 672,737.48 and 148,980.09 is: 223,386.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,659.88 : 672,737.48 = 148,980.09 : x
  2. Step 2: Convert to fraction form
    448,659.88/672,737.48 = 148,980.09/x
  3. Step 3: Cross multiply
    448,659.88x = 672,737.48 × 148,980.09
  4. Step 4: Simplify right side
    448,659.88x = 100,224,487,325.54
  5. Step 5: Solve for x
    x = 100,224,487,325.54/448,659.88
  6. Step 6: Final answer
    x = 223,386.34

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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.