Home / 513,961.91-770,910.04-158,946.20

Finding the Fourth Proportional to 513,961.91, 770,910.04 and 158,946.20

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Solution

The fourth proportional to 513,961.91, 770,910.04 and 158,946.20 is: 238,409.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,961.91 : 770,910.04 = 158,946.20 : x
  2. Step 2: Convert to fraction form
    513,961.91/770,910.04 = 158,946.20/x
  3. Step 3: Cross multiply
    513,961.91x = 770,910.04 × 158,946.20
  4. Step 4: Simplify right side
    513,961.91x = 122,533,221,399.85
  5. Step 5: Solve for x
    x = 122,533,221,399.85/513,961.91
  6. Step 6: Final answer
    x = 238,409.15

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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.