Home / 393,990.12-590,997.06-154,094.58

Finding the Fourth Proportional to 393,990.12, 590,997.06 and 154,094.58

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Solution

The fourth proportional to 393,990.12, 590,997.06 and 154,094.58 is: 231,146.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,990.12 : 590,997.06 = 154,094.58 : x
  2. Step 2: Convert to fraction form
    393,990.12/590,997.06 = 154,094.58/x
  3. Step 3: Cross multiply
    393,990.12x = 590,997.06 × 154,094.58
  4. Step 4: Simplify right side
    393,990.12x = 91,069,443,741.93
  5. Step 5: Solve for x
    x = 91,069,443,741.93/393,990.12
  6. Step 6: Final answer
    x = 231,146.52

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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.