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Finding the Fourth Proportional to 308,181.28, 460,015.10 and 271,779.95

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Solution

The fourth proportional to 308,181.28, 460,015.10 and 271,779.95 is: 405,679.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,181.28 : 460,015.10 = 271,779.95 : x
  2. Step 2: Convert to fraction form
    308,181.28/460,015.10 = 271,779.95/x
  3. Step 3: Cross multiply
    308,181.28x = 460,015.10 × 271,779.95
  4. Step 4: Simplify right side
    308,181.28x = 125,022,880,628.74
  5. Step 5: Solve for x
    x = 125,022,880,628.74/308,181.28
  6. Step 6: Final answer
    x = 405,679.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.