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Finding the Fourth Proportional to 274,276.95, 378,349.81 and 159,542.67

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Solution

The fourth proportional to 274,276.95, 378,349.81 and 159,542.67 is: 220,080.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,276.95 : 378,349.81 = 159,542.67 : x
  2. Step 2: Convert to fraction form
    274,276.95/378,349.81 = 159,542.67/x
  3. Step 3: Cross multiply
    274,276.95x = 378,349.81 × 159,542.67
  4. Step 4: Simplify right side
    274,276.95x = 60,362,938,881.39
  5. Step 5: Solve for x
    x = 60,362,938,881.39/274,276.95
  6. Step 6: Final answer
    x = 220,080.25

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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.