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Finding the Fourth Proportional to 308,077.03, 425,147.60 and 168,378.45

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Solution

The fourth proportional to 308,077.03, 425,147.60 and 168,378.45 is: 232,362.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,077.03 : 425,147.60 = 168,378.45 : x
  2. Step 2: Convert to fraction form
    308,077.03/425,147.60 = 168,378.45/x
  3. Step 3: Cross multiply
    308,077.03x = 425,147.60 × 168,378.45
  4. Step 4: Simplify right side
    308,077.03x = 71,585,693,909.22
  5. Step 5: Solve for x
    x = 71,585,693,909.22/308,077.03
  6. Step 6: Final answer
    x = 232,362.97

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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.