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Finding the Fourth Proportional to 218,777.64, 301,913.10 and 118,175.64

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Solution

The fourth proportional to 218,777.64, 301,913.10 and 118,175.64 is: 163,082.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,777.64 : 301,913.10 = 118,175.64 : x
  2. Step 2: Convert to fraction form
    218,777.64/301,913.10 = 118,175.64/x
  3. Step 3: Cross multiply
    218,777.64x = 301,913.10 × 118,175.64
  4. Step 4: Simplify right side
    218,777.64x = 35,678,773,816.88
  5. Step 5: Solve for x
    x = 35,678,773,816.88/218,777.64
  6. Step 6: Final answer
    x = 163,082.36

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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.