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Finding the Fourth Proportional to 456,010.60, 684,015.90 and 140,564.20

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Solution

The fourth proportional to 456,010.60, 684,015.90 and 140,564.20 is: 210,846.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,010.60 : 684,015.90 = 140,564.20 : x
  2. Step 2: Convert to fraction form
    456,010.60/684,015.90 = 140,564.20/x
  3. Step 3: Cross multiply
    456,010.60x = 684,015.90 × 140,564.20
  4. Step 4: Simplify right side
    456,010.60x = 96,148,147,770.78
  5. Step 5: Solve for x
    x = 96,148,147,770.78/456,010.60
  6. Step 6: Final answer
    x = 210,846.30

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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.