Home / 288,917.20-433,367.70-131,145.40

Finding the Fourth Proportional to 288,917.20, 433,367.70 and 131,145.40

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Solution

The fourth proportional to 288,917.20, 433,367.70 and 131,145.40 is: 196,714.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,917.20 : 433,367.70 = 131,145.40 : x
  2. Step 2: Convert to fraction form
    288,917.20/433,367.70 = 131,145.40/x
  3. Step 3: Cross multiply
    288,917.20x = 433,367.70 × 131,145.40
  4. Step 4: Simplify right side
    288,917.20x = 56,834,180,363.58
  5. Step 5: Solve for x
    x = 56,834,180,363.58/288,917.20
  6. Step 6: Final answer
    x = 196,714.42

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1.5x scale

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.