Home / 205,900.10-284,128.35-115,240.58

Finding the Fourth Proportional to 205,900.10, 284,128.35 and 115,240.58

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Solution

The fourth proportional to 205,900.10, 284,128.35 and 115,240.58 is: 159,024.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,900.10 : 284,128.35 = 115,240.58 : x
  2. Step 2: Convert to fraction form
    205,900.10/284,128.35 = 115,240.58/x
  3. Step 3: Cross multiply
    205,900.10x = 284,128.35 × 115,240.58
  4. Step 4: Simplify right side
    205,900.10x = 32,743,115,848.44
  5. Step 5: Solve for x
    x = 32,743,115,848.44/205,900.10
  6. Step 6: Final answer
    x = 159,024.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.