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Finding the Fourth Proportional to 225,013.32, 310,522.86 and 123,045.12

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Solution

The fourth proportional to 225,013.32, 310,522.86 and 123,045.12 is: 169,804.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,013.32 : 310,522.86 = 123,045.12 : x
  2. Step 2: Convert to fraction form
    225,013.32/310,522.86 = 123,045.12/x
  3. Step 3: Cross multiply
    225,013.32x = 310,522.86 × 123,045.12
  4. Step 4: Simplify right side
    225,013.32x = 38,208,322,571.44
  5. Step 5: Solve for x
    x = 38,208,322,571.44/225,013.32
  6. Step 6: Final answer
    x = 169,804.71

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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.