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Finding the Fourth Proportional to 503,731.56, 755,697.06 and 143,905.56

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Solution

The fourth proportional to 503,731.56, 755,697.06 and 143,905.56 is: 215,886.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,731.56 : 755,697.06 = 143,905.56 : x
  2. Step 2: Convert to fraction form
    503,731.56/755,697.06 = 143,905.56/x
  3. Step 3: Cross multiply
    503,731.56x = 755,697.06 × 143,905.56
  4. Step 4: Simplify right side
    503,731.56x = 108,749,008,609.65
  5. Step 5: Solve for x
    x = 108,749,008,609.65/503,731.56
  6. Step 6: Final answer
    x = 215,886.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.