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Finding the Fourth Proportional to 170,342.20, 255,513.30 and 151,315.30

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Solution

The fourth proportional to 170,342.20, 255,513.30 and 151,315.30 is: 226,972.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,342.20 : 255,513.30 = 151,315.30 : x
  2. Step 2: Convert to fraction form
    170,342.20/255,513.30 = 151,315.30/x
  3. Step 3: Cross multiply
    170,342.20x = 255,513.30 × 151,315.30
  4. Step 4: Simplify right side
    170,342.20x = 38,663,071,643.49
  5. Step 5: Solve for x
    x = 38,663,071,643.49/170,342.20
  6. Step 6: Final answer
    x = 226,972.95

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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.