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Finding the Fourth Proportional to 613,253.60, 919,880.40 and 164,043.80

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Solution

The fourth proportional to 613,253.60, 919,880.40 and 164,043.80 is: 246,065.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,253.60 : 919,880.40 = 164,043.80 : x
  2. Step 2: Convert to fraction form
    613,253.60/919,880.40 = 164,043.80/x
  3. Step 3: Cross multiply
    613,253.60x = 919,880.40 × 164,043.80
  4. Step 4: Simplify right side
    613,253.60x = 150,900,676,361.52
  5. Step 5: Solve for x
    x = 150,900,676,361.52/613,253.60
  6. Step 6: Final answer
    x = 246,065.70

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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.