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Finding the Fourth Proportional to 543,260.12, 814,905.60 and 143,900.93

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Solution

The fourth proportional to 543,260.12, 814,905.60 and 143,900.93 is: 215,855.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,260.12 : 814,905.60 = 143,900.93 : x
  2. Step 2: Convert to fraction form
    543,260.12/814,905.60 = 143,900.93/x
  3. Step 3: Cross multiply
    543,260.12x = 814,905.60 × 143,900.93
  4. Step 4: Simplify right side
    543,260.12x = 117,265,675,739.47
  5. Step 5: Solve for x
    x = 117,265,675,739.47/543,260.12
  6. Step 6: Final answer
    x = 215,855.48

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Similar ratio
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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.