Home / 443,439.36-611,945.28-242,236.80

Finding the Fourth Proportional to 443,439.36, 611,945.28 and 242,236.80

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Solution

The fourth proportional to 443,439.36, 611,945.28 and 242,236.80 is: 334,286.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,439.36 : 611,945.28 = 242,236.80 : x
  2. Step 2: Convert to fraction form
    443,439.36/611,945.28 = 242,236.80/x
  3. Step 3: Cross multiply
    443,439.36x = 611,945.28 × 242,236.80
  4. Step 4: Simplify right side
    443,439.36x = 148,235,666,402.30
  5. Step 5: Solve for x
    x = 148,235,666,402.30/443,439.36
  6. Step 6: Final answer
    x = 334,286.22

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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.