Home / 318,197.21-477,345.02-198,162.35

Finding the Fourth Proportional to 318,197.21, 477,345.02 and 198,162.35

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Solution

The fourth proportional to 318,197.21, 477,345.02 and 198,162.35 is: 297,274.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,197.21 : 477,345.02 = 198,162.35 : x
  2. Step 2: Convert to fraction form
    318,197.21/477,345.02 = 198,162.35/x
  3. Step 3: Cross multiply
    318,197.21x = 477,345.02 × 198,162.35
  4. Step 4: Simplify right side
    318,197.21x = 94,591,807,546.46
  5. Step 5: Solve for x
    x = 94,591,807,546.46/318,197.21
  6. Step 6: Final answer
    x = 297,274.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.