Finding the Fourth Proportional to 307,339.07, 423,945.14 and 239,248.26
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Solution
The fourth proportional to 307,339.07, 423,945.14 and 239,248.26 is: 330,020.32
Step by Step Solution
- Step 1: Write the proportion equation
307,339.07 : 423,945.14 = 239,248.26 : x - Step 2: Convert to fraction form
307,339.07/423,945.14 = 239,248.26/x - Step 3: Cross multiply
307,339.07x = 423,945.14 × 239,248.26 - Step 4: Simplify right side
307,339.07x = 101,428,135,884.22 - Step 5: Solve for x
x = 101,428,135,884.22/307,339.07 - Step 6: Final answer
x = 330,020.32
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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.