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Finding the Fourth Proportional to 383,295.74, 528,958.62 and 213,529.86

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Solution

The fourth proportional to 383,295.74, 528,958.62 and 213,529.86 is: 294,677.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,295.74 : 528,958.62 = 213,529.86 : x
  2. Step 2: Convert to fraction form
    383,295.74/528,958.62 = 213,529.86/x
  3. Step 3: Cross multiply
    383,295.74x = 528,958.62 × 213,529.86
  4. Step 4: Simplify right side
    383,295.74x = 112,948,460,074.39
  5. Step 5: Solve for x
    x = 112,948,460,074.39/383,295.74
  6. Step 6: Final answer
    x = 294,677.06

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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.