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Finding the Fourth Proportional to 383,538.96, 575,391.48 and 146,881.62

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Solution

The fourth proportional to 383,538.96, 575,391.48 and 146,881.62 is: 220,354.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,538.96 : 575,391.48 = 146,881.62 : x
  2. Step 2: Convert to fraction form
    383,538.96/575,391.48 = 146,881.62/x
  3. Step 3: Cross multiply
    383,538.96x = 575,391.48 × 146,881.62
  4. Step 4: Simplify right side
    383,538.96x = 84,514,432,716.60
  5. Step 5: Solve for x
    x = 84,514,432,716.60/383,538.96
  6. Step 6: Final answer
    x = 220,354.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.