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Finding the Fourth Proportional to 442,700.82, 610,956 and 251,731.98

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Solution

The fourth proportional to 442,700.82, 610,956 and 251,731.98 is: 347,406.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,700.82 : 610,956 = 251,731.98 : x
  2. Step 2: Convert to fraction form
    442,700.82/610,956 = 251,731.98/x
  3. Step 3: Cross multiply
    442,700.82x = 610,956 × 251,731.98
  4. Step 4: Simplify right side
    442,700.82x = 153,797,163,572.88
  5. Step 5: Solve for x
    x = 153,797,163,572.88/442,700.82
  6. Step 6: Final answer
    x = 347,406.55

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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.