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Finding the Fourth Proportional to 448,659.51, 672,736.92 and 148,979.71

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Solution

The fourth proportional to 448,659.51, 672,736.92 and 148,979.71 is: 223,385.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,659.51 : 672,736.92 = 148,979.71 : x
  2. Step 2: Convert to fraction form
    448,659.51/672,736.92 = 148,979.71/x
  3. Step 3: Cross multiply
    448,659.51x = 672,736.92 × 148,979.71
  4. Step 4: Simplify right side
    448,659.51x = 100,224,151,247.89
  5. Step 5: Solve for x
    x = 100,224,151,247.89/448,659.51
  6. Step 6: Final answer
    x = 223,385.77

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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.