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Finding the Fourth Proportional to 216,702.98, 299,050.88 and 121,203.58

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Solution

The fourth proportional to 216,702.98, 299,050.88 and 121,203.58 is: 167,261.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,702.98 : 299,050.88 = 121,203.58 : x
  2. Step 2: Convert to fraction form
    216,702.98/299,050.88 = 121,203.58/x
  3. Step 3: Cross multiply
    216,702.98x = 299,050.88 × 121,203.58
  4. Step 4: Simplify right side
    216,702.98x = 36,246,037,258.15
  5. Step 5: Solve for x
    x = 36,246,037,258.15/216,702.98
  6. Step 6: Final answer
    x = 167,261.37

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.