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Finding the Fourth Proportional to 383,160.69, 528,761.75 and 213,394.82

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Solution

The fourth proportional to 383,160.69, 528,761.75 and 213,394.82 is: 294,484.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,160.69 : 528,761.75 = 213,394.82 : x
  2. Step 2: Convert to fraction form
    383,160.69/528,761.75 = 213,394.82/x
  3. Step 3: Cross multiply
    383,160.69x = 528,761.75 × 213,394.82
  4. Step 4: Simplify right side
    383,160.69x = 112,835,014,753.35
  5. Step 5: Solve for x
    x = 112,835,014,753.35/383,160.69
  6. Step 6: Final answer
    x = 294,484.84

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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.