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Finding the Fourth Proportional to 460,889.34, 691,334.01 and 145,370.85

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Solution

The fourth proportional to 460,889.34, 691,334.01 and 145,370.85 is: 218,056.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    460,889.34 : 691,334.01 = 145,370.85 : x
  2. Step 2: Convert to fraction form
    460,889.34/691,334.01 = 145,370.85/x
  3. Step 3: Cross multiply
    460,889.34x = 691,334.01 × 145,370.85
  4. Step 4: Simplify right side
    460,889.34x = 100,499,812,667.61
  5. Step 5: Solve for x
    x = 100,499,812,667.61/460,889.34
  6. Step 6: Final answer
    x = 218,056.28

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Similar ratio
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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.