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Finding the Fourth Proportional to 140,196.88, 210,263.88 and 40,334.80

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Solution

The fourth proportional to 140,196.88, 210,263.88 and 40,334.80 is: 60,493.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,196.88 : 210,263.88 = 40,334.80 : x
  2. Step 2: Convert to fraction form
    140,196.88/210,263.88 = 40,334.80/x
  3. Step 3: Cross multiply
    140,196.88x = 210,263.88 × 40,334.80
  4. Step 4: Simplify right side
    140,196.88x = 8,480,951,547.02
  5. Step 5: Solve for x
    x = 8,480,951,547.02/140,196.88
  6. Step 6: Final answer
    x = 60,493.15

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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.