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Finding the Fourth Proportional to 177,558.40, 266,110.80 and 72,258.40

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Solution

The fourth proportional to 177,558.40, 266,110.80 and 72,258.40 is: 108,295.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,558.40 : 266,110.80 = 72,258.40 : x
  2. Step 2: Convert to fraction form
    177,558.40/266,110.80 = 72,258.40/x
  3. Step 3: Cross multiply
    177,558.40x = 266,110.80 × 72,258.40
  4. Step 4: Simplify right side
    177,558.40x = 19,228,740,630.72
  5. Step 5: Solve for x
    x = 19,228,740,630.72/177,558.40
  6. Step 6: Final answer
    x = 108,295.30

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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.