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Finding the Fourth Proportional to 307,813.96, 461,757.72 and 291,017.80

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Solution

The fourth proportional to 307,813.96, 461,757.72 and 291,017.80 is: 436,561.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,813.96 : 461,757.72 = 291,017.80 : x
  2. Step 2: Convert to fraction form
    307,813.96/461,757.72 = 291,017.80/x
  3. Step 3: Cross multiply
    307,813.96x = 461,757.72 × 291,017.80
  4. Step 4: Simplify right side
    307,813.96x = 134,379,715,807.42
  5. Step 5: Solve for x
    x = 134,379,715,807.42/307,813.96
  6. Step 6: Final answer
    x = 436,561.47

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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.