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Finding the Fourth Proportional to 395,082.98, 545,213.86 and 223,037.16

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Solution

The fourth proportional to 395,082.98, 545,213.86 and 223,037.16 is: 307,790.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,082.98 : 545,213.86 = 223,037.16 : x
  2. Step 2: Convert to fraction form
    395,082.98/545,213.86 = 223,037.16/x
  3. Step 3: Cross multiply
    395,082.98x = 545,213.86 × 223,037.16
  4. Step 4: Simplify right side
    395,082.98x = 121,602,950,927.04
  5. Step 5: Solve for x
    x = 121,602,950,927.04/395,082.98
  6. Step 6: Final answer
    x = 307,790.91

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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.