Home / 252,986.58-349,128.72-138,271.62

Finding the Fourth Proportional to 252,986.58, 349,128.72 and 138,271.62

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Solution

The fourth proportional to 252,986.58, 349,128.72 and 138,271.62 is: 190,818.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,986.58 : 349,128.72 = 138,271.62 : x
  2. Step 2: Convert to fraction form
    252,986.58/349,128.72 = 138,271.62/x
  3. Step 3: Cross multiply
    252,986.58x = 349,128.72 × 138,271.62
  4. Step 4: Simplify right side
    252,986.58x = 48,274,593,702.93
  5. Step 5: Solve for x
    x = 48,274,593,702.93/252,986.58
  6. Step 6: Final answer
    x = 190,818.79

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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.