Home / 362,438.28-500,090.22-209,421.72

Finding the Fourth Proportional to 362,438.28, 500,090.22 and 209,421.72

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Solution

The fourth proportional to 362,438.28, 500,090.22 and 209,421.72 is: 288,958.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,438.28 : 500,090.22 = 209,421.72 : x
  2. Step 2: Convert to fraction form
    362,438.28/500,090.22 = 209,421.72/x
  3. Step 3: Cross multiply
    362,438.28x = 500,090.22 × 209,421.72
  4. Step 4: Simplify right side
    362,438.28x = 104,729,754,027.58
  5. Step 5: Solve for x
    x = 104,729,754,027.58/362,438.28
  6. Step 6: Final answer
    x = 288,958.87

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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.