Home / 282,917.66-390,431.12-162,069.50

Finding the Fourth Proportional to 282,917.66, 390,431.12 and 162,069.50

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Solution

The fourth proportional to 282,917.66, 390,431.12 and 162,069.50 is: 223,658.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,917.66 : 390,431.12 = 162,069.50 : x
  2. Step 2: Convert to fraction form
    282,917.66/390,431.12 = 162,069.50/x
  3. Step 3: Cross multiply
    282,917.66x = 390,431.12 × 162,069.50
  4. Step 4: Simplify right side
    282,917.66x = 63,276,976,568.57
  5. Step 5: Solve for x
    x = 63,276,976,568.57/282,917.66
  6. Step 6: Final answer
    x = 223,658.64

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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.