Home / 395,180.24-545,353.08-225,424.40

Finding the Fourth Proportional to 395,180.24, 545,353.08 and 225,424.40

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Solution

The fourth proportional to 395,180.24, 545,353.08 and 225,424.40 is: 311,088.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,180.24 : 545,353.08 = 225,424.40 : x
  2. Step 2: Convert to fraction form
    395,180.24/545,353.08 = 225,424.40/x
  3. Step 3: Cross multiply
    395,180.24x = 545,353.08 × 225,424.40
  4. Step 4: Simplify right side
    395,180.24x = 122,935,890,847.15
  5. Step 5: Solve for x
    x = 122,935,890,847.15/395,180.24
  6. Step 6: Final answer
    x = 311,088.15

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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.