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Finding the Fourth Proportional to 382,572.30, 528,051.15 and 269,445.90

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Solution

The fourth proportional to 382,572.30, 528,051.15 and 269,445.90 is: 371,906.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,572.30 : 528,051.15 = 269,445.90 : x
  2. Step 2: Convert to fraction form
    382,572.30/528,051.15 = 269,445.90/x
  3. Step 3: Cross multiply
    382,572.30x = 528,051.15 × 269,445.90
  4. Step 4: Simplify right side
    382,572.30x = 142,281,217,357.79
  5. Step 5: Solve for x
    x = 142,281,217,357.79/382,572.30
  6. Step 6: Final answer
    x = 371,906.74

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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.