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Finding the Fourth Proportional to 275,148.60, 379,783.80 and 162,036.96

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Solution

The fourth proportional to 275,148.60, 379,783.80 and 162,036.96 is: 223,657.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,148.60 : 379,783.80 = 162,036.96 : x
  2. Step 2: Convert to fraction form
    275,148.60/379,783.80 = 162,036.96/x
  3. Step 3: Cross multiply
    275,148.60x = 379,783.80 × 162,036.96
  4. Step 4: Simplify right side
    275,148.60x = 61,539,012,409.25
  5. Step 5: Solve for x
    x = 61,539,012,409.25/275,148.60
  6. Step 6: Final answer
    x = 223,657.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.