Home / 257,177.40-355,582.04-225,254.70

Finding the Fourth Proportional to 257,177.40, 355,582.04 and 225,254.70

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Solution

The fourth proportional to 257,177.40, 355,582.04 and 225,254.70 is: 311,444.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,177.40 : 355,582.04 = 225,254.70 : x
  2. Step 2: Convert to fraction form
    257,177.40/355,582.04 = 225,254.70/x
  3. Step 3: Cross multiply
    257,177.40x = 355,582.04 × 225,254.70
  4. Step 4: Simplify right side
    257,177.40x = 80,096,525,745.59
  5. Step 5: Solve for x
    x = 80,096,525,745.59/257,177.40
  6. Step 6: Final answer
    x = 311,444.65

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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.