Home / 513,245.72-769,819.04-158,164.40

Finding the Fourth Proportional to 513,245.72, 769,819.04 and 158,164.40

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Solution

The fourth proportional to 513,245.72, 769,819.04 and 158,164.40 is: 237,231.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,245.72 : 769,819.04 = 158,164.40 : x
  2. Step 2: Convert to fraction form
    513,245.72/769,819.04 = 158,164.40/x
  3. Step 3: Cross multiply
    513,245.72x = 769,819.04 × 158,164.40
  4. Step 4: Simplify right side
    513,245.72x = 121,757,966,570.18
  5. Step 5: Solve for x
    x = 121,757,966,570.18/513,245.72
  6. Step 6: Final answer
    x = 237,231.33

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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.