Home / 287,271.87-430,936.96-109,928.04

Finding the Fourth Proportional to 287,271.87, 430,936.96 and 109,928.04

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Solution

The fourth proportional to 287,271.87, 430,936.96 and 109,928.04 is: 164,903.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,271.87 : 430,936.96 = 109,928.04 : x
  2. Step 2: Convert to fraction form
    287,271.87/430,936.96 = 109,928.04/x
  3. Step 3: Cross multiply
    287,271.87x = 430,936.96 × 109,928.04
  4. Step 4: Simplify right side
    287,271.87x = 47,372,055,376.36
  5. Step 5: Solve for x
    x = 47,372,055,376.36/287,271.87
  6. Step 6: Final answer
    x = 164,903.22

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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.