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Finding the Fourth Proportional to 479,245.77, 661,357.29 and 264,399.21

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Solution

The fourth proportional to 479,245.77, 661,357.29 and 264,399.21 is: 364,869.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,245.77 : 661,357.29 = 264,399.21 : x
  2. Step 2: Convert to fraction form
    479,245.77/661,357.29 = 264,399.21/x
  3. Step 3: Cross multiply
    479,245.77x = 661,357.29 × 264,399.21
  4. Step 4: Simplify right side
    479,245.77x = 174,862,343,681.75
  5. Step 5: Solve for x
    x = 174,862,343,681.75/479,245.77
  6. Step 6: Final answer
    x = 364,869.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.