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Finding the Fourth Proportional to 443,690.08, 612,278.64 and 252,730.72

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Solution

The fourth proportional to 443,690.08, 612,278.64 and 252,730.72 is: 348,760.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,690.08 : 612,278.64 = 252,730.72 : x
  2. Step 2: Convert to fraction form
    443,690.08/612,278.64 = 252,730.72/x
  3. Step 3: Cross multiply
    443,690.08x = 612,278.64 × 252,730.72
  4. Step 4: Simplify right side
    443,690.08x = 154,741,621,527.82
  5. Step 5: Solve for x
    x = 154,741,621,527.82/443,690.08
  6. Step 6: Final answer
    x = 348,760.61

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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.