Home / 395,438.28-545,749.02-225,701.16

Finding the Fourth Proportional to 395,438.28, 545,749.02 and 225,701.16

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Solution

The fourth proportional to 395,438.28, 545,749.02 and 225,701.16 is: 311,492.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,438.28 : 545,749.02 = 225,701.16 : x
  2. Step 2: Convert to fraction form
    395,438.28/545,749.02 = 225,701.16/x
  3. Step 3: Cross multiply
    395,438.28x = 545,749.02 × 225,701.16
  4. Step 4: Simplify right side
    395,438.28x = 123,176,186,882.86
  5. Step 5: Solve for x
    x = 123,176,186,882.86/395,438.28
  6. Step 6: Final answer
    x = 311,492.82

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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.