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Finding the Fourth Proportional to 213,955.78, 295,263.58 and 117,163.72

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Solution

The fourth proportional to 213,955.78, 295,263.58 and 117,163.72 is: 161,688.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,955.78 : 295,263.58 = 117,163.72 : x
  2. Step 2: Convert to fraction form
    213,955.78/295,263.58 = 117,163.72/x
  3. Step 3: Cross multiply
    213,955.78x = 295,263.58 × 117,163.72
  4. Step 4: Simplify right side
    213,955.78x = 34,594,179,413.32
  5. Step 5: Solve for x
    x = 34,594,179,413.32/213,955.78
  6. Step 6: Final answer
    x = 161,688.45

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1.5x scale

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.