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Finding the Fourth Proportional to 448,957.72, 672,963.18 and 149,358.28

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Solution

The fourth proportional to 448,957.72, 672,963.18 and 149,358.28 is: 223,879.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,957.72 : 672,963.18 = 149,358.28 : x
  2. Step 2: Convert to fraction form
    448,957.72/672,963.18 = 149,358.28/x
  3. Step 3: Cross multiply
    448,957.72x = 672,963.18 × 149,358.28
  4. Step 4: Simplify right side
    448,957.72x = 100,512,623,068.13
  5. Step 5: Solve for x
    x = 100,512,623,068.13/448,957.72
  6. Step 6: Final answer
    x = 223,879.93

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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.