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Finding the Fourth Proportional to 208,330.56, 312,196.56 and 118,444.80

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Solution

The fourth proportional to 208,330.56, 312,196.56 and 118,444.80 is: 177,497.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,330.56 : 312,196.56 = 118,444.80 : x
  2. Step 2: Convert to fraction form
    208,330.56/312,196.56 = 118,444.80/x
  3. Step 3: Cross multiply
    208,330.56x = 312,196.56 × 118,444.80
  4. Step 4: Simplify right side
    208,330.56x = 36,978,059,109.89
  5. Step 5: Solve for x
    x = 36,978,059,109.89/208,330.56
  6. Step 6: Final answer
    x = 177,497.05

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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.