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Finding the Fourth Proportional to 303,070.93, 418,066.63 and 189,696.85

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Solution

The fourth proportional to 303,070.93, 418,066.63 and 189,696.85 is: 261,674.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,070.93 : 418,066.63 = 189,696.85 : x
  2. Step 2: Convert to fraction form
    303,070.93/418,066.63 = 189,696.85/x
  3. Step 3: Cross multiply
    303,070.93x = 418,066.63 × 189,696.85
  4. Step 4: Simplify right side
    303,070.93x = 79,305,922,801.12
  5. Step 5: Solve for x
    x = 79,305,922,801.12/303,070.93
  6. Step 6: Final answer
    x = 261,674.46

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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.