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Finding the Fourth Proportional to 268,323.61, 402,235.27 and 90,706.41

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Solution

The fourth proportional to 268,323.61, 402,235.27 and 90,706.41 is: 135,975.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,323.61 : 402,235.27 = 90,706.41 : x
  2. Step 2: Convert to fraction form
    268,323.61/402,235.27 = 90,706.41/x
  3. Step 3: Cross multiply
    268,323.61x = 402,235.27 × 90,706.41
  4. Step 4: Simplify right side
    268,323.61x = 36,485,317,317.08
  5. Step 5: Solve for x
    x = 36,485,317,317.08/268,323.61
  6. Step 6: Final answer
    x = 135,975.05

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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.