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Finding the Fourth Proportional to 255,536.64, 383,304.96 and 89,285.76

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Solution

The fourth proportional to 255,536.64, 383,304.96 and 89,285.76 is: 133,928.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,536.64 : 383,304.96 = 89,285.76 : x
  2. Step 2: Convert to fraction form
    255,536.64/383,304.96 = 89,285.76/x
  3. Step 3: Cross multiply
    255,536.64x = 383,304.96 × 89,285.76
  4. Step 4: Simplify right side
    255,536.64x = 34,223,674,665.37
  5. Step 5: Solve for x
    x = 34,223,674,665.37/255,536.64
  6. Step 6: Final answer
    x = 133,928.64

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Why These Related Problems?

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