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Finding the Fourth Proportional to 301,043.68, 415,459.48 and 198,889.93

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Solution

The fourth proportional to 301,043.68, 415,459.48 and 198,889.93 is: 274,480.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,043.68 : 415,459.48 = 198,889.93 : x
  2. Step 2: Convert to fraction form
    301,043.68/415,459.48 = 198,889.93/x
  3. Step 3: Cross multiply
    301,043.68x = 415,459.48 × 198,889.93
  4. Step 4: Simplify right side
    301,043.68x = 82,630,706,895.04
  5. Step 5: Solve for x
    x = 82,630,706,895.04/301,043.68
  6. Step 6: Final answer
    x = 274,480.79

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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.