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Finding the Fourth Proportional to 216,660.42, 299,066.54 and 148,901.70

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Solution

The fourth proportional to 216,660.42, 299,066.54 and 148,901.70 is: 205,535.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,660.42 : 299,066.54 = 148,901.70 : x
  2. Step 2: Convert to fraction form
    216,660.42/299,066.54 = 148,901.70/x
  3. Step 3: Cross multiply
    216,660.42x = 299,066.54 × 148,901.70
  4. Step 4: Simplify right side
    216,660.42x = 44,531,513,979.28
  5. Step 5: Solve for x
    x = 44,531,513,979.28/216,660.42
  6. Step 6: Final answer
    x = 205,535.99

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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.