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Finding the Fourth Proportional to 173,340, 260,001.50 and 66,774.78

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Solution

The fourth proportional to 173,340, 260,001.50 and 66,774.78 is: 100,158.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,340 : 260,001.50 = 66,774.78 : x
  2. Step 2: Convert to fraction form
    173,340/260,001.50 = 66,774.78/x
  3. Step 3: Cross multiply
    173,340x = 260,001.50 × 66,774.78
  4. Step 4: Simplify right side
    173,340x = 17,361,542,628.30
  5. Step 5: Solve for x
    x = 17,361,542,628.30/173,340
  6. Step 6: Final answer
    x = 100,158.89

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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.