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Finding the Fourth Proportional to 385,085.76, 577,630.26 and 252,803.04

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Solution

The fourth proportional to 385,085.76, 577,630.26 and 252,803.04 is: 379,205.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,085.76 : 577,630.26 = 252,803.04 : x
  2. Step 2: Convert to fraction form
    385,085.76/577,630.26 = 252,803.04/x
  3. Step 3: Cross multiply
    385,085.76x = 577,630.26 × 252,803.04
  4. Step 4: Simplify right side
    385,085.76x = 146,026,685,723.99
  5. Step 5: Solve for x
    x = 146,026,685,723.99/385,085.76
  6. Step 6: Final answer
    x = 379,205.62

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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.