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Finding the Fourth Proportional to 379,771.85, 524,074.78 and 210,000.17

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Solution

The fourth proportional to 379,771.85, 524,074.78 and 210,000.17 is: 289,794.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,771.85 : 524,074.78 = 210,000.17 : x
  2. Step 2: Convert to fraction form
    379,771.85/524,074.78 = 210,000.17/x
  3. Step 3: Cross multiply
    379,771.85x = 524,074.78 × 210,000.17
  4. Step 4: Simplify right side
    379,771.85x = 110,055,792,892.71
  5. Step 5: Solve for x
    x = 110,055,792,892.71/379,771.85
  6. Step 6: Final answer
    x = 289,794.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.