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Finding the Fourth Proportional to 293,707.40, 440,561.10 and 278,544.20

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Solution

The fourth proportional to 293,707.40, 440,561.10 and 278,544.20 is: 417,816.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,707.40 : 440,561.10 = 278,544.20 : x
  2. Step 2: Convert to fraction form
    293,707.40/440,561.10 = 278,544.20/x
  3. Step 3: Cross multiply
    293,707.40x = 440,561.10 × 278,544.20
  4. Step 4: Simplify right side
    293,707.40x = 122,715,739,150.62
  5. Step 5: Solve for x
    x = 122,715,739,150.62/293,707.40
  6. Step 6: Final answer
    x = 417,816.30

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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.