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Finding the Fourth Proportional to 203,818.68, 281,303.28 and 118,919.34

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Solution

The fourth proportional to 203,818.68, 281,303.28 and 118,919.34 is: 164,128.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,818.68 : 281,303.28 = 118,919.34 : x
  2. Step 2: Convert to fraction form
    203,818.68/281,303.28 = 118,919.34/x
  3. Step 3: Cross multiply
    203,818.68x = 281,303.28 × 118,919.34
  4. Step 4: Simplify right side
    203,818.68x = 33,452,400,397.44
  5. Step 5: Solve for x
    x = 33,452,400,397.44/203,818.68
  6. Step 6: Final answer
    x = 164,128.24

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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.