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Finding the Fourth Proportional to 303,353.31, 418,779.13 and 188,668.93

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Solution

The fourth proportional to 303,353.31, 418,779.13 and 188,668.93 is: 260,457.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,353.31 : 418,779.13 = 188,668.93 : x
  2. Step 2: Convert to fraction form
    303,353.31/418,779.13 = 188,668.93/x
  3. Step 3: Cross multiply
    303,353.31x = 418,779.13 × 188,668.93
  4. Step 4: Simplify right side
    303,353.31x = 79,010,608,269.54
  5. Step 5: Solve for x
    x = 79,010,608,269.54/303,353.31
  6. Step 6: Final answer
    x = 260,457.38

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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.