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Finding the Fourth Proportional to 383,448.92, 529,074.23 and 220,095.45

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Solution

The fourth proportional to 383,448.92, 529,074.23 and 220,095.45 is: 303,682.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,448.92 : 529,074.23 = 220,095.45 : x
  2. Step 2: Convert to fraction form
    383,448.92/529,074.23 = 220,095.45/x
  3. Step 3: Cross multiply
    383,448.92x = 529,074.23 × 220,095.45
  4. Step 4: Simplify right side
    383,448.92x = 116,446,829,634.78
  5. Step 5: Solve for x
    x = 116,446,829,634.78/383,448.92
  6. Step 6: Final answer
    x = 303,682.77

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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.