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Finding the Fourth Proportional to 236,980.95, 355,611.75 and 87,326.16

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Solution

The fourth proportional to 236,980.95, 355,611.75 and 87,326.16 is: 131,040.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,980.95 : 355,611.75 = 87,326.16 : x
  2. Step 2: Convert to fraction form
    236,980.95/355,611.75 = 87,326.16/x
  3. Step 3: Cross multiply
    236,980.95x = 355,611.75 × 87,326.16
  4. Step 4: Simplify right side
    236,980.95x = 31,054,208,578.38
  5. Step 5: Solve for x
    x = 31,054,208,578.38/236,980.95
  6. Step 6: Final answer
    x = 131,040.95

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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.