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Finding the Fourth Proportional to 243,431.36, 335,934.40 and 134,532.66

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Solution

The fourth proportional to 243,431.36, 335,934.40 and 134,532.66 is: 185,654.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,431.36 : 335,934.40 = 134,532.66 : x
  2. Step 2: Convert to fraction form
    243,431.36/335,934.40 = 134,532.66/x
  3. Step 3: Cross multiply
    243,431.36x = 335,934.40 × 134,532.66
  4. Step 4: Simplify right side
    243,431.36x = 45,194,148,417.50
  5. Step 5: Solve for x
    x = 45,194,148,417.50/243,431.36
  6. Step 6: Final answer
    x = 185,654.59

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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.