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Finding the Fourth Proportional to 514,327.80, 771,491.70 and 159,450.60

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Solution

The fourth proportional to 514,327.80, 771,491.70 and 159,450.60 is: 239,175.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,327.80 : 771,491.70 = 159,450.60 : x
  2. Step 2: Convert to fraction form
    514,327.80/771,491.70 = 159,450.60/x
  3. Step 3: Cross multiply
    514,327.80x = 771,491.70 × 159,450.60
  4. Step 4: Simplify right side
    514,327.80x = 123,014,814,460.02
  5. Step 5: Solve for x
    x = 123,014,814,460.02/514,327.80
  6. Step 6: Final answer
    x = 239,175.90

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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.