Home / 205,729.58-308,096.04-142,372.16

Finding the Fourth Proportional to 205,729.58, 308,096.04 and 142,372.16

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Solution

The fourth proportional to 205,729.58, 308,096.04 and 142,372.16 is: 213,213.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,729.58 : 308,096.04 = 142,372.16 : x
  2. Step 2: Convert to fraction form
    205,729.58/308,096.04 = 142,372.16/x
  3. Step 3: Cross multiply
    205,729.58x = 308,096.04 × 142,372.16
  4. Step 4: Simplify right side
    205,729.58x = 43,864,298,702.25
  5. Step 5: Solve for x
    x = 43,864,298,702.25/205,729.58
  6. Step 6: Final answer
    x = 213,213.38

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1.5x scale

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.