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Finding the Fourth Proportional to 245,440.72, 368,141.62 and 87,652.72

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Solution

The fourth proportional to 245,440.72, 368,141.62 and 87,652.72 is: 131,472.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,440.72 : 368,141.62 = 87,652.72 : x
  2. Step 2: Convert to fraction form
    245,440.72/368,141.62 = 87,652.72/x
  3. Step 3: Cross multiply
    245,440.72x = 368,141.62 × 87,652.72
  4. Step 4: Simplify right side
    245,440.72x = 32,268,614,338.21
  5. Step 5: Solve for x
    x = 32,268,614,338.21/245,440.72
  6. Step 6: Final answer
    x = 131,472.13

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.