Home / 289,622.20-434,562.90-131,769.40

Finding the Fourth Proportional to 289,622.20, 434,562.90 and 131,769.40

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Solution

The fourth proportional to 289,622.20, 434,562.90 and 131,769.40 is: 197,713.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,622.20 : 434,562.90 = 131,769.40 : x
  2. Step 2: Convert to fraction form
    289,622.20/434,562.90 = 131,769.40/x
  3. Step 3: Cross multiply
    289,622.20x = 434,562.90 × 131,769.40
  4. Step 4: Simplify right side
    289,622.20x = 57,262,092,595.26
  5. Step 5: Solve for x
    x = 57,262,092,595.26/289,622.20
  6. Step 6: Final answer
    x = 197,713.06

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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.