Home / 487,941.21-731,350.22-188,289.27

Finding the Fourth Proportional to 487,941.21, 731,350.22 and 188,289.27

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Solution

The fourth proportional to 487,941.21, 731,350.22 and 188,289.27 is: 282,217.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,941.21 : 731,350.22 = 188,289.27 : x
  2. Step 2: Convert to fraction form
    487,941.21/731,350.22 = 188,289.27/x
  3. Step 3: Cross multiply
    487,941.21x = 731,350.22 × 188,289.27
  4. Step 4: Simplify right side
    487,941.21x = 137,705,398,096.69
  5. Step 5: Solve for x
    x = 137,705,398,096.69/487,941.21
  6. Step 6: Final answer
    x = 282,217.19

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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.