Home / 254,731.40-382,024.20-77,195.60

Finding the Fourth Proportional to 254,731.40, 382,024.20 and 77,195.60

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Solution

The fourth proportional to 254,731.40, 382,024.20 and 77,195.60 is: 115,771.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,731.40 : 382,024.20 = 77,195.60 : x
  2. Step 2: Convert to fraction form
    254,731.40/382,024.20 = 77,195.60/x
  3. Step 3: Cross multiply
    254,731.40x = 382,024.20 × 77,195.60
  4. Step 4: Simplify right side
    254,731.40x = 29,490,587,333.52
  5. Step 5: Solve for x
    x = 29,490,587,333.52/254,731.40
  6. Step 6: Final answer
    x = 115,771.31

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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.