Home / 225,433.15-311,308.48-145,000.31

Finding the Fourth Proportional to 225,433.15, 311,308.48 and 145,000.31

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Solution

The fourth proportional to 225,433.15, 311,308.48 and 145,000.31 is: 200,235.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,433.15 : 311,308.48 = 145,000.31 : x
  2. Step 2: Convert to fraction form
    225,433.15/311,308.48 = 145,000.31/x
  3. Step 3: Cross multiply
    225,433.15x = 311,308.48 × 145,000.31
  4. Step 4: Simplify right side
    225,433.15x = 45,139,824,730.34
  5. Step 5: Solve for x
    x = 45,139,824,730.34/225,433.15
  6. Step 6: Final answer
    x = 200,235.97

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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.