Home / 393,820.20-590,701.64-153,889.16

Finding the Fourth Proportional to 393,820.20, 590,701.64 and 153,889.16

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Solution

The fourth proportional to 393,820.20, 590,701.64 and 153,889.16 is: 230,822.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,820.20 : 590,701.64 = 153,889.16 : x
  2. Step 2: Convert to fraction form
    393,820.20/590,701.64 = 153,889.16/x
  3. Step 3: Cross multiply
    393,820.20x = 590,701.64 × 153,889.16
  4. Step 4: Simplify right side
    393,820.20x = 90,902,579,190.22
  5. Step 5: Solve for x
    x = 90,902,579,190.22/393,820.20
  6. Step 6: Final answer
    x = 230,822.54

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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.