Home / 282,627.40-390,047.52-161,806.60

Finding the Fourth Proportional to 282,627.40, 390,047.52 and 161,806.60

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Solution

The fourth proportional to 282,627.40, 390,047.52 and 161,806.60 is: 223,305.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,627.40 : 390,047.52 = 161,806.60 : x
  2. Step 2: Convert to fraction form
    282,627.40/390,047.52 = 161,806.60/x
  3. Step 3: Cross multiply
    282,627.40x = 390,047.52 × 161,806.60
  4. Step 4: Simplify right side
    282,627.40x = 63,112,263,049.63
  5. Step 5: Solve for x
    x = 63,112,263,049.63/282,627.40
  6. Step 6: Final answer
    x = 223,305.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.