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Finding the Fourth Proportional to 276,048.80, 414,073.20 and 98,561.60

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Solution

The fourth proportional to 276,048.80, 414,073.20 and 98,561.60 is: 147,842.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,048.80 : 414,073.20 = 98,561.60 : x
  2. Step 2: Convert to fraction form
    276,048.80/414,073.20 = 98,561.60/x
  3. Step 3: Cross multiply
    276,048.80x = 414,073.20 × 98,561.60
  4. Step 4: Simplify right side
    276,048.80x = 40,811,717,109.12
  5. Step 5: Solve for x
    x = 40,811,717,109.12/276,048.80
  6. Step 6: Final answer
    x = 147,842.40

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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.