Home / 288,769.20-433,145.70-130,997.40

Finding the Fourth Proportional to 288,769.20, 433,145.70 and 130,997.40

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Solution

The fourth proportional to 288,769.20, 433,145.70 and 130,997.40 is: 196,492.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,769.20 : 433,145.70 = 130,997.40 : x
  2. Step 2: Convert to fraction form
    288,769.20/433,145.70 = 130,997.40/x
  3. Step 3: Cross multiply
    288,769.20x = 433,145.70 × 130,997.40
  4. Step 4: Simplify right side
    288,769.20x = 56,740,960,521.18
  5. Step 5: Solve for x
    x = 56,740,960,521.18/288,769.20
  6. Step 6: Final answer
    x = 196,492.43

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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.