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Finding the Fourth Proportional to 480,493.60, 720,740.40 and 231,200.80

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Solution

The fourth proportional to 480,493.60, 720,740.40 and 231,200.80 is: 346,801.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,493.60 : 720,740.40 = 231,200.80 : x
  2. Step 2: Convert to fraction form
    480,493.60/720,740.40 = 231,200.80/x
  3. Step 3: Cross multiply
    480,493.60x = 720,740.40 × 231,200.80
  4. Step 4: Simplify right side
    480,493.60x = 166,635,757,072.32
  5. Step 5: Solve for x
    x = 166,635,757,072.32/480,493.60
  6. Step 6: Final answer
    x = 346,801.20

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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.