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Finding the Fourth Proportional to 170,339.94, 255,735.99 and 145,539.36

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Solution

The fourth proportional to 170,339.94, 255,735.99 and 145,539.36 is: 218,502.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,339.94 : 255,735.99 = 145,539.36 : x
  2. Step 2: Convert to fraction form
    170,339.94/255,735.99 = 145,539.36/x
  3. Step 3: Cross multiply
    170,339.94x = 255,735.99 × 145,539.36
  4. Step 4: Simplify right side
    170,339.94x = 37,219,652,313.57
  5. Step 5: Solve for x
    x = 37,219,652,313.57/170,339.94
  6. Step 6: Final answer
    x = 218,502.20

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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.