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Finding the Fourth Proportional to 202,322.93, 279,205.65 and 111,678.91

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Solution

The fourth proportional to 202,322.93, 279,205.65 and 111,678.91 is: 154,116.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,322.93 : 279,205.65 = 111,678.91 : x
  2. Step 2: Convert to fraction form
    202,322.93/279,205.65 = 111,678.91/x
  3. Step 3: Cross multiply
    202,322.93x = 279,205.65 × 111,678.91
  4. Step 4: Simplify right side
    202,322.93x = 31,181,382,657.84
  5. Step 5: Solve for x
    x = 31,181,382,657.84/202,322.93
  6. Step 6: Final answer
    x = 154,116.90

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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.