Home / 255,447.08-382,485.38-142,806.50

Finding the Fourth Proportional to 255,447.08, 382,485.38 and 142,806.50

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Solution

The fourth proportional to 255,447.08, 382,485.38 and 142,806.50 is: 213,826.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,447.08 : 382,485.38 = 142,806.50 : x
  2. Step 2: Convert to fraction form
    255,447.08/382,485.38 = 142,806.50/x
  3. Step 3: Cross multiply
    255,447.08x = 382,485.38 × 142,806.50
  4. Step 4: Simplify right side
    255,447.08x = 54,621,398,418.97
  5. Step 5: Solve for x
    x = 54,621,398,418.97/255,447.08
  6. Step 6: Final answer
    x = 213,826.67

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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.