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Finding the Fourth Proportional to 383,149.33, 528,762.48 and 213,383.46

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Solution

The fourth proportional to 383,149.33, 528,762.48 and 213,383.46 is: 294,478.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,149.33 : 528,762.48 = 213,383.46 : x
  2. Step 2: Convert to fraction form
    383,149.33/528,762.48 = 213,383.46/x
  3. Step 3: Cross multiply
    383,149.33x = 528,762.48 × 213,383.46
  4. Step 4: Simplify right side
    383,149.33x = 112,829,167,500.58
  5. Step 5: Solve for x
    x = 112,829,167,500.58/383,149.33
  6. Step 6: Final answer
    x = 294,478.31

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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.