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Finding the Fourth Proportional to 213,695.66, 294,881.64 and 118,178.58

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Solution

The fourth proportional to 213,695.66, 294,881.64 and 118,178.58 is: 163,076.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,695.66 : 294,881.64 = 118,178.58 : x
  2. Step 2: Convert to fraction form
    213,695.66/294,881.64 = 118,178.58/x
  3. Step 3: Cross multiply
    213,695.66x = 294,881.64 × 118,178.58
  4. Step 4: Simplify right side
    213,695.66x = 34,848,693,483.27
  5. Step 5: Solve for x
    x = 34,848,693,483.27/213,695.66
  6. Step 6: Final answer
    x = 163,076.28

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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.