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Finding the Fourth Proportional to 177,811.60, 266,328.60 and 138,056.80

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Solution

The fourth proportional to 177,811.60, 266,328.60 and 138,056.80 is: 206,783.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,811.60 : 266,328.60 = 138,056.80 : x
  2. Step 2: Convert to fraction form
    177,811.60/266,328.60 = 138,056.80/x
  3. Step 3: Cross multiply
    177,811.60x = 266,328.60 × 138,056.80
  4. Step 4: Simplify right side
    177,811.60x = 36,768,474,264.48
  5. Step 5: Solve for x
    x = 36,768,474,264.48/177,811.60
  6. Step 6: Final answer
    x = 206,783.33

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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.