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Finding the Fourth Proportional to 507,012.10, 760,518.15 and 133,072.90

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Solution

The fourth proportional to 507,012.10, 760,518.15 and 133,072.90 is: 199,609.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,012.10 : 760,518.15 = 133,072.90 : x
  2. Step 2: Convert to fraction form
    507,012.10/760,518.15 = 133,072.90/x
  3. Step 3: Cross multiply
    507,012.10x = 760,518.15 × 133,072.90
  4. Step 4: Simplify right side
    507,012.10x = 101,204,355,723.14
  5. Step 5: Solve for x
    x = 101,204,355,723.14/507,012.10
  6. Step 6: Final answer
    x = 199,609.35

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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.