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Finding the Fourth Proportional to 268,071.04, 401,494.08 and 127,928.08

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Solution

The fourth proportional to 268,071.04, 401,494.08 and 127,928.08 is: 191,599.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,071.04 : 401,494.08 = 127,928.08 : x
  2. Step 2: Convert to fraction form
    268,071.04/401,494.08 = 127,928.08/x
  3. Step 3: Cross multiply
    268,071.04x = 401,494.08 × 127,928.08
  4. Step 4: Simplify right side
    268,071.04x = 51,362,366,785.77
  5. Step 5: Solve for x
    x = 51,362,366,785.77/268,071.04
  6. Step 6: Final answer
    x = 191,599.83

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.