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Finding the Fourth Proportional to 255,954.88, 353,157.60 and 155,333.44

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Solution

The fourth proportional to 255,954.88, 353,157.60 and 155,333.44 is: 214,323.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,954.88 : 353,157.60 = 155,333.44 : x
  2. Step 2: Convert to fraction form
    255,954.88/353,157.60 = 155,333.44/x
  3. Step 3: Cross multiply
    255,954.88x = 353,157.60 × 155,333.44
  4. Step 4: Simplify right side
    255,954.88x = 54,857,184,870.14
  5. Step 5: Solve for x
    x = 54,857,184,870.14/255,954.88
  6. Step 6: Final answer
    x = 214,323.65

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1.5x scale

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.