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Finding the Fourth Proportional to 218,410.81, 301,357.06 and 122,882.65

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Solution

The fourth proportional to 218,410.81, 301,357.06 and 122,882.65 is: 169,550.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,410.81 : 301,357.06 = 122,882.65 : x
  2. Step 2: Convert to fraction form
    218,410.81/301,357.06 = 122,882.65/x
  3. Step 3: Cross multiply
    218,410.81x = 301,357.06 × 122,882.65
  4. Step 4: Simplify right side
    218,410.81x = 37,031,554,129.01
  5. Step 5: Solve for x
    x = 37,031,554,129.01/218,410.81
  6. Step 6: Final answer
    x = 169,550.01

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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.