Home / 389,313.72-582,915.35-201,931.56

Finding the Fourth Proportional to 389,313.72, 582,915.35 and 201,931.56

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Solution

The fourth proportional to 389,313.72, 582,915.35 and 201,931.56 is: 302,350.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,313.72 : 582,915.35 = 201,931.56 : x
  2. Step 2: Convert to fraction form
    389,313.72/582,915.35 = 201,931.56/x
  3. Step 3: Cross multiply
    389,313.72x = 582,915.35 × 201,931.56
  4. Step 4: Simplify right side
    389,313.72x = 117,709,003,986.93
  5. Step 5: Solve for x
    x = 117,709,003,986.93/389,313.72
  6. Step 6: Final answer
    x = 302,350.00

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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.