Home / 203,567.28-305,371.90-70,447.34

Finding the Fourth Proportional to 203,567.28, 305,371.90 and 70,447.34

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Solution

The fourth proportional to 203,567.28, 305,371.90 and 70,447.34 is: 105,678.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,567.28 : 305,371.90 = 70,447.34 : x
  2. Step 2: Convert to fraction form
    203,567.28/305,371.90 = 70,447.34/x
  3. Step 3: Cross multiply
    203,567.28x = 305,371.90 × 70,447.34
  4. Step 4: Simplify right side
    203,567.28x = 21,512,638,065.75
  5. Step 5: Solve for x
    x = 21,512,638,065.75/203,567.28
  6. Step 6: Final answer
    x = 105,678.27

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.