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Finding the Fourth Proportional to 274,070.20, 410,663.70 and 155,388.60

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Solution

The fourth proportional to 274,070.20, 410,663.70 and 155,388.60 is: 232,832.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,070.20 : 410,663.70 = 155,388.60 : x
  2. Step 2: Convert to fraction form
    274,070.20/410,663.70 = 155,388.60/x
  3. Step 3: Cross multiply
    274,070.20x = 410,663.70 × 155,388.60
  4. Step 4: Simplify right side
    274,070.20x = 63,812,457,413.82
  5. Step 5: Solve for x
    x = 63,812,457,413.82/274,070.20
  6. Step 6: Final answer
    x = 232,832.53

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1.5x scale

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.