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Finding the Fourth Proportional to 307,562.55, 461,122.38 and 188,988.90

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Solution

The fourth proportional to 307,562.55, 461,122.38 and 188,988.90 is: 283,347.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,562.55 : 461,122.38 = 188,988.90 : x
  2. Step 2: Convert to fraction form
    307,562.55/461,122.38 = 188,988.90/x
  3. Step 3: Cross multiply
    307,562.55x = 461,122.38 × 188,988.90
  4. Step 4: Simplify right side
    307,562.55x = 87,147,011,361.58
  5. Step 5: Solve for x
    x = 87,147,011,361.58/307,562.55
  6. Step 6: Final answer
    x = 283,347.28

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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.