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Finding the Fourth Proportional to 268,542.62, 370,566.77 and 158,143.88

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Solution

The fourth proportional to 268,542.62, 370,566.77 and 158,143.88 is: 218,225.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,542.62 : 370,566.77 = 158,143.88 : x
  2. Step 2: Convert to fraction form
    268,542.62/370,566.77 = 158,143.88/x
  3. Step 3: Cross multiply
    268,542.62x = 370,566.77 × 158,143.88
  4. Step 4: Simplify right side
    268,542.62x = 58,602,866,806.87
  5. Step 5: Solve for x
    x = 58,602,866,806.87/268,542.62
  6. Step 6: Final answer
    x = 218,225.57

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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.