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Finding the Fourth Proportional to 225,113.10, 310,643.01 and 123,119.52

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Solution

The fourth proportional to 225,113.10, 310,643.01 and 123,119.52 is: 169,897.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,113.10 : 310,643.01 = 123,119.52 : x
  2. Step 2: Convert to fraction form
    225,113.10/310,643.01 = 123,119.52/x
  3. Step 3: Cross multiply
    225,113.10x = 310,643.01 × 123,119.52
  4. Step 4: Simplify right side
    225,113.10x = 38,246,218,282.56
  5. Step 5: Solve for x
    x = 38,246,218,282.56/225,113.10
  6. Step 6: Final answer
    x = 169,897.79

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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.