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Finding the Fourth Proportional to 208,774.88, 312,759.22 and 124,602.20

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Solution

The fourth proportional to 208,774.88, 312,759.22 and 124,602.20 is: 186,662.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,774.88 : 312,759.22 = 124,602.20 : x
  2. Step 2: Convert to fraction form
    208,774.88/312,759.22 = 124,602.20/x
  3. Step 3: Cross multiply
    208,774.88x = 312,759.22 × 124,602.20
  4. Step 4: Simplify right side
    208,774.88x = 38,970,486,882.28
  5. Step 5: Solve for x
    x = 38,970,486,882.28/208,774.88
  6. Step 6: Final answer
    x = 186,662.72

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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.