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Finding the Fourth Proportional to 251,281.44, 346,758.87 and 143,861.47

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Solution

The fourth proportional to 251,281.44, 346,758.87 and 143,861.47 is: 198,523.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,281.44 : 346,758.87 = 143,861.47 : x
  2. Step 2: Convert to fraction form
    251,281.44/346,758.87 = 143,861.47/x
  3. Step 3: Cross multiply
    251,281.44x = 346,758.87 × 143,861.47
  4. Step 4: Simplify right side
    251,281.44x = 49,885,240,446.32
  5. Step 5: Solve for x
    x = 49,885,240,446.32/251,281.44
  6. Step 6: Final answer
    x = 198,523.38

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1.5x scale

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.