Home / 286,639.56-430,011.06-118,067.88

Finding the Fourth Proportional to 286,639.56, 430,011.06 and 118,067.88

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Solution

The fourth proportional to 286,639.56, 430,011.06 and 118,067.88 is: 177,123.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,639.56 : 430,011.06 = 118,067.88 : x
  2. Step 2: Convert to fraction form
    286,639.56/430,011.06 = 118,067.88/x
  3. Step 3: Cross multiply
    286,639.56x = 430,011.06 × 118,067.88
  4. Step 4: Simplify right side
    286,639.56x = 50,770,494,230.75
  5. Step 5: Solve for x
    x = 50,770,494,230.75/286,639.56
  6. Step 6: Final answer
    x = 177,123.12

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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.