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Finding the Fourth Proportional to 275,734.68, 380,491.11 and 153,230.67

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Solution

The fourth proportional to 275,734.68, 380,491.11 and 153,230.67 is: 211,445.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,734.68 : 380,491.11 = 153,230.67 : x
  2. Step 2: Convert to fraction form
    275,734.68/380,491.11 = 153,230.67/x
  3. Step 3: Cross multiply
    275,734.68x = 380,491.11 × 153,230.67
  4. Step 4: Simplify right side
    275,734.68x = 58,302,907,714.34
  5. Step 5: Solve for x
    x = 58,302,907,714.34/275,734.68
  6. Step 6: Final answer
    x = 211,445.68

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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.