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Finding the Fourth Proportional to 216,416.52, 298,654.16 and 120,923.28

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Solution

The fourth proportional to 216,416.52, 298,654.16 and 120,923.28 is: 166,873.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,416.52 : 298,654.16 = 120,923.28 : x
  2. Step 2: Convert to fraction form
    216,416.52/298,654.16 = 120,923.28/x
  3. Step 3: Cross multiply
    216,416.52x = 298,654.16 × 120,923.28
  4. Step 4: Simplify right side
    216,416.52x = 36,114,240,612.84
  5. Step 5: Solve for x
    x = 36,114,240,612.84/216,416.52
  6. Step 6: Final answer
    x = 166,873.77

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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.