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Finding the Fourth Proportional to 255,699.48, 383,659.91 and 137,232.39

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Solution

The fourth proportional to 255,699.48, 383,659.91 and 137,232.39 is: 205,907.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,699.48 : 383,659.91 = 137,232.39 : x
  2. Step 2: Convert to fraction form
    255,699.48/383,659.91 = 137,232.39/x
  3. Step 3: Cross multiply
    255,699.48x = 383,659.91 × 137,232.39
  4. Step 4: Simplify right side
    255,699.48x = 52,650,565,710.32
  5. Step 5: Solve for x
    x = 52,650,565,710.32/255,699.48
  6. Step 6: Final answer
    x = 205,907.99

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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.