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Finding the Fourth Proportional to 225,860.98, 311,697.04 and 123,890.08

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Solution

The fourth proportional to 225,860.98, 311,697.04 and 123,890.08 is: 170,973.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,860.98 : 311,697.04 = 123,890.08 : x
  2. Step 2: Convert to fraction form
    225,860.98/311,697.04 = 123,890.08/x
  3. Step 3: Cross multiply
    225,860.98x = 311,697.04 × 123,890.08
  4. Step 4: Simplify right side
    225,860.98x = 38,616,171,221.36
  5. Step 5: Solve for x
    x = 38,616,171,221.36/225,860.98
  6. Step 6: Final answer
    x = 170,973.19

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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.