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Finding the Fourth Proportional to 448,485.22, 672,613 and 132,868.32

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Solution

The fourth proportional to 448,485.22, 672,613 and 132,868.32 is: 199,268.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,485.22 : 672,613 = 132,868.32 : x
  2. Step 2: Convert to fraction form
    448,485.22/672,613 = 132,868.32/x
  3. Step 3: Cross multiply
    448,485.22x = 672,613 × 132,868.32
  4. Step 4: Simplify right side
    448,485.22x = 89,368,959,320.16
  5. Step 5: Solve for x
    x = 89,368,959,320.16/448,485.22
  6. Step 6: Final answer
    x = 199,268.46

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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.