Home / 328,094.10-492,080.40-91,387.80

Finding the Fourth Proportional to 328,094.10, 492,080.40 and 91,387.80

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Solution

The fourth proportional to 328,094.10, 492,080.40 and 91,387.80 is: 137,064.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,094.10 : 492,080.40 = 91,387.80 : x
  2. Step 2: Convert to fraction form
    328,094.10/492,080.40 = 91,387.80/x
  3. Step 3: Cross multiply
    328,094.10x = 492,080.40 × 91,387.80
  4. Step 4: Simplify right side
    328,094.10x = 44,970,145,179.12
  5. Step 5: Solve for x
    x = 44,970,145,179.12/328,094.10
  6. Step 6: Final answer
    x = 137,064.78

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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.