Home / 287,271.62-430,936.58-109,927.79

Finding the Fourth Proportional to 287,271.62, 430,936.58 and 109,927.79

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Solution

The fourth proportional to 287,271.62, 430,936.58 and 109,927.79 is: 164,902.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,271.62 : 430,936.58 = 109,927.79 : x
  2. Step 2: Convert to fraction form
    287,271.62/430,936.58 = 109,927.79/x
  3. Step 3: Cross multiply
    287,271.62x = 430,936.58 × 109,927.79
  4. Step 4: Simplify right side
    287,271.62x = 47,371,903,989.69
  5. Step 5: Solve for x
    x = 47,371,903,989.69/287,271.62
  6. Step 6: Final answer
    x = 164,902.84

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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.