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Finding the Fourth Proportional to 370,894.95, 511,835.31 and 201,129.03

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Solution

The fourth proportional to 370,894.95, 511,835.31 and 201,129.03 is: 277,558.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,894.95 : 511,835.31 = 201,129.03 : x
  2. Step 2: Convert to fraction form
    370,894.95/511,835.31 = 201,129.03/x
  3. Step 3: Cross multiply
    370,894.95x = 511,835.31 × 201,129.03
  4. Step 4: Simplify right side
    370,894.95x = 102,944,939,420.05
  5. Step 5: Solve for x
    x = 102,944,939,420.05/370,894.95
  6. Step 6: Final answer
    x = 277,558.21

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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.