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Finding the Fourth Proportional to 282,281.25, 389,622.79 and 174,790.20

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Solution

The fourth proportional to 282,281.25, 389,622.79 and 174,790.20 is: 241,256.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,281.25 : 389,622.79 = 174,790.20 : x
  2. Step 2: Convert to fraction form
    282,281.25/389,622.79 = 174,790.20/x
  3. Step 3: Cross multiply
    282,281.25x = 389,622.79 × 174,790.20
  4. Step 4: Simplify right side
    282,281.25x = 68,102,245,388.66
  5. Step 5: Solve for x
    x = 68,102,245,388.66/282,281.25
  6. Step 6: Final answer
    x = 241,256.71

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1.5x scale

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.