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Finding the Fourth Proportional to 250,484.84, 345,682.99 and 143,089.77

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Solution

The fourth proportional to 250,484.84, 345,682.99 and 143,089.77 is: 197,471.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,484.84 : 345,682.99 = 143,089.77 : x
  2. Step 2: Convert to fraction form
    250,484.84/345,682.99 = 143,089.77/x
  3. Step 3: Cross multiply
    250,484.84x = 345,682.99 × 143,089.77
  4. Step 4: Simplify right side
    250,484.84x = 49,463,699,532.01
  5. Step 5: Solve for x
    x = 49,463,699,532.01/250,484.84
  6. Step 6: Final answer
    x = 197,471.83

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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.