Home / 362,140.15-499,815.25-209,150.84

Finding the Fourth Proportional to 362,140.15, 499,815.25 and 209,150.84

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Solution

The fourth proportional to 362,140.15, 499,815.25 and 209,150.84 is: 288,663.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,140.15 : 499,815.25 = 209,150.84 : x
  2. Step 2: Convert to fraction form
    362,140.15/499,815.25 = 209,150.84/x
  3. Step 3: Cross multiply
    362,140.15x = 499,815.25 × 209,150.84
  4. Step 4: Simplify right side
    362,140.15x = 104,536,776,883.23
  5. Step 5: Solve for x
    x = 104,536,776,883.23/362,140.15
  6. Step 6: Final answer
    x = 288,663.87

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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.