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Finding the Fourth Proportional to 331,059, 496,686.42 and 190,918.20

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Solution

The fourth proportional to 331,059, 496,686.42 and 190,918.20 is: 286,433.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,059 : 496,686.42 = 190,918.20 : x
  2. Step 2: Convert to fraction form
    331,059/496,686.42 = 190,918.20/x
  3. Step 3: Cross multiply
    331,059x = 496,686.42 × 190,918.20
  4. Step 4: Simplify right side
    331,059x = 94,826,477,270.84
  5. Step 5: Solve for x
    x = 94,826,477,270.84/331,059
  6. Step 6: Final answer
    x = 286,433.77

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1.5x scale

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.