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Finding the Fourth Proportional to 507,515.82, 700,396.83 and 281,162.22

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Solution

The fourth proportional to 507,515.82, 700,396.83 and 281,162.22 is: 388,017.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,515.82 : 700,396.83 = 281,162.22 : x
  2. Step 2: Convert to fraction form
    507,515.82/700,396.83 = 281,162.22/x
  3. Step 3: Cross multiply
    507,515.82x = 700,396.83 × 281,162.22
  4. Step 4: Simplify right side
    507,515.82x = 196,925,127,603.76
  5. Step 5: Solve for x
    x = 196,925,127,603.76/507,515.82
  6. Step 6: Final answer
    x = 388,017.71

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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.