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Finding the Fourth Proportional to 276,362.40, 414,543.60 and 210,007.20

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Solution

The fourth proportional to 276,362.40, 414,543.60 and 210,007.20 is: 315,010.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,362.40 : 414,543.60 = 210,007.20 : x
  2. Step 2: Convert to fraction form
    276,362.40/414,543.60 = 210,007.20/x
  3. Step 3: Cross multiply
    276,362.40x = 414,543.60 × 210,007.20
  4. Step 4: Simplify right side
    276,362.40x = 87,057,140,713.92
  5. Step 5: Solve for x
    x = 87,057,140,713.92/276,362.40
  6. Step 6: Final answer
    x = 315,010.80

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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.