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Finding the Fourth Proportional to 255,602.40, 383,401.68 and 66,046.56

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Solution

The fourth proportional to 255,602.40, 383,401.68 and 66,046.56 is: 99,069.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,602.40 : 383,401.68 = 66,046.56 : x
  2. Step 2: Convert to fraction form
    255,602.40/383,401.68 = 66,046.56/x
  3. Step 3: Cross multiply
    255,602.40x = 383,401.68 × 66,046.56
  4. Step 4: Simplify right side
    255,602.40x = 25,322,362,062.22
  5. Step 5: Solve for x
    x = 25,322,362,062.22/255,602.40
  6. Step 6: Final answer
    x = 99,069.34

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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.