Home / 218,731.68-301,828.14-123,255.36

Finding the Fourth Proportional to 218,731.68, 301,828.14 and 123,255.36

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Solution

The fourth proportional to 218,731.68, 301,828.14 and 123,255.36 is: 170,080.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,731.68 : 301,828.14 = 123,255.36 : x
  2. Step 2: Convert to fraction form
    218,731.68/301,828.14 = 123,255.36/x
  3. Step 3: Cross multiply
    218,731.68x = 301,828.14 × 123,255.36
  4. Step 4: Simplify right side
    218,731.68x = 37,201,936,053.83
  5. Step 5: Solve for x
    x = 37,201,936,053.83/218,731.68
  6. Step 6: Final answer
    x = 170,080.24

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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.