Home / 279,605.22-385,877.01-158,784.40

Finding the Fourth Proportional to 279,605.22, 385,877.01 and 158,784.40

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Solution

The fourth proportional to 279,605.22, 385,877.01 and 158,784.40 is: 219,134.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,605.22 : 385,877.01 = 158,784.40 : x
  2. Step 2: Convert to fraction form
    279,605.22/385,877.01 = 158,784.40/x
  3. Step 3: Cross multiply
    279,605.22x = 385,877.01 × 158,784.40
  4. Step 4: Simplify right side
    279,605.22x = 61,271,250,584.43
  5. Step 5: Solve for x
    x = 61,271,250,584.43/279,605.22
  6. Step 6: Final answer
    x = 219,134.86

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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.