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Finding the Fourth Proportional to 316,894.47, 475,021.85 and 198,648.84

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Solution

The fourth proportional to 316,894.47, 475,021.85 and 198,648.84 is: 297,772.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,894.47 : 475,021.85 = 198,648.84 : x
  2. Step 2: Convert to fraction form
    316,894.47/475,021.85 = 198,648.84/x
  3. Step 3: Cross multiply
    316,894.47x = 475,021.85 × 198,648.84
  4. Step 4: Simplify right side
    316,894.47x = 94,362,539,477.15
  5. Step 5: Solve for x
    x = 94,362,539,477.15/316,894.47
  6. Step 6: Final answer
    x = 297,772.76

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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.