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Finding the Fourth Proportional to 460,893.21, 691,339.83 and 145,374.72

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Solution

The fourth proportional to 460,893.21, 691,339.83 and 145,374.72 is: 218,062.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    460,893.21 : 691,339.83 = 145,374.72 : x
  2. Step 2: Convert to fraction form
    460,893.21/691,339.83 = 145,374.72/x
  3. Step 3: Cross multiply
    460,893.21x = 691,339.83 × 145,374.72
  4. Step 4: Simplify right side
    460,893.21x = 100,503,331,073.42
  5. Step 5: Solve for x
    x = 100,503,331,073.42/460,893.21
  6. Step 6: Final answer
    x = 218,062.08

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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.