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Finding the Fourth Proportional to 285,371.52, 393,993.60 and 183,444.48

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Solution

The fourth proportional to 285,371.52, 393,993.60 and 183,444.48 is: 253,269.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,371.52 : 393,993.60 = 183,444.48 : x
  2. Step 2: Convert to fraction form
    285,371.52/393,993.60 = 183,444.48/x
  3. Step 3: Cross multiply
    285,371.52x = 393,993.60 × 183,444.48
  4. Step 4: Simplify right side
    285,371.52x = 72,275,951,075.33
  5. Step 5: Solve for x
    x = 72,275,951,075.33/285,371.52
  6. Step 6: Final answer
    x = 253,269.67

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Why These Related Problems?

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