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Finding the Fourth Proportional to 225,308.30, 310,924.99 and 123,333.78

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Solution

The fourth proportional to 225,308.30, 310,924.99 and 123,333.78 is: 170,200.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,308.30 : 310,924.99 = 123,333.78 : x
  2. Step 2: Convert to fraction form
    225,308.30/310,924.99 = 123,333.78/x
  3. Step 3: Cross multiply
    225,308.30x = 310,924.99 × 123,333.78
  4. Step 4: Simplify right side
    225,308.30x = 38,347,554,313.16
  5. Step 5: Solve for x
    x = 38,347,554,313.16/225,308.30
  6. Step 6: Final answer
    x = 170,200.36

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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.