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Finding the Fourth Proportional to 153,380.39, 211,662.93 and 88,858.42

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Solution

The fourth proportional to 153,380.39, 211,662.93 and 88,858.42 is: 122,623.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,380.39 : 211,662.93 = 88,858.42 : x
  2. Step 2: Convert to fraction form
    153,380.39/211,662.93 = 88,858.42/x
  3. Step 3: Cross multiply
    153,380.39x = 211,662.93 × 88,858.42
  4. Step 4: Simplify right side
    153,380.39x = 18,808,033,532.37
  5. Step 5: Solve for x
    x = 18,808,033,532.37/153,380.39
  6. Step 6: Final answer
    x = 122,623.46

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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.