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Finding the Fourth Proportional to 392,360.00, 541,419.40 and 220,238.55

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Solution

The fourth proportional to 392,360.00, 541,419.40 and 220,238.55 is: 303,908.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,360.00 : 541,419.40 = 220,238.55 : x
  2. Step 2: Convert to fraction form
    392,360.00/541,419.40 = 220,238.55/x
  3. Step 3: Cross multiply
    392,360.00x = 541,419.40 × 220,238.55
  4. Step 4: Simplify right side
    392,360.00x = 119,241,423,047.27
  5. Step 5: Solve for x
    x = 119,241,423,047.27/392,360.00
  6. Step 6: Final answer
    x = 303,908.20

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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.