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Finding the Fourth Proportional to 299,970.56, 450,080.04 and 131,403.80

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Solution

The fourth proportional to 299,970.56, 450,080.04 and 131,403.80 is: 197,160.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,970.56 : 450,080.04 = 131,403.80 : x
  2. Step 2: Convert to fraction form
    299,970.56/450,080.04 = 131,403.80/x
  3. Step 3: Cross multiply
    299,970.56x = 450,080.04 × 131,403.80
  4. Step 4: Simplify right side
    299,970.56x = 59,142,227,560.15
  5. Step 5: Solve for x
    x = 59,142,227,560.15/299,970.56
  6. Step 6: Final answer
    x = 197,160.11

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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.