Home / 280,653.23-421,295.33-112,292.33

Finding the Fourth Proportional to 280,653.23, 421,295.33 and 112,292.33

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Solution

The fourth proportional to 280,653.23, 421,295.33 and 112,292.33 is: 168,564.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,653.23 : 421,295.33 = 112,292.33 : x
  2. Step 2: Convert to fraction form
    280,653.23/421,295.33 = 112,292.33/x
  3. Step 3: Cross multiply
    280,653.23x = 421,295.33 × 112,292.33
  4. Step 4: Simplify right side
    280,653.23x = 47,308,231,555.88
  5. Step 5: Solve for x
    x = 47,308,231,555.88/280,653.23
  6. Step 6: Final answer
    x = 168,564.72

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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.