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Finding the Fourth Proportional to 307,950.58, 421,885.26 and 296,437.22

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Solution

The fourth proportional to 307,950.58, 421,885.26 and 296,437.22 is: 406,112.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,950.58 : 421,885.26 = 296,437.22 : x
  2. Step 2: Convert to fraction form
    307,950.58/421,885.26 = 296,437.22/x
  3. Step 3: Cross multiply
    307,950.58x = 421,885.26 × 296,437.22
  4. Step 4: Simplify right side
    307,950.58x = 125,062,493,633.38
  5. Step 5: Solve for x
    x = 125,062,493,633.38/307,950.58
  6. Step 6: Final answer
    x = 406,112.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.