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Finding the Fourth Proportional to 218,775.64, 301,910.34 and 118,173.64

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Solution

The fourth proportional to 218,775.64, 301,910.34 and 118,173.64 is: 163,079.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,775.64 : 301,910.34 = 118,173.64 : x
  2. Step 2: Convert to fraction form
    218,775.64/301,910.34 = 118,173.64/x
  3. Step 3: Cross multiply
    218,775.64x = 301,910.34 × 118,173.64
  4. Step 4: Simplify right side
    218,775.64x = 35,677,843,831.44
  5. Step 5: Solve for x
    x = 35,677,843,831.44/218,775.64
  6. Step 6: Final answer
    x = 163,079.60

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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.