Finding the Fourth Proportional to 438,686.31, 605,398.12 and 247,701.07
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Solution
The fourth proportional to 438,686.31, 605,398.12 and 247,701.07 is: 341,833.69
Step by Step Solution
- Step 1: Write the proportion equation
438,686.31 : 605,398.12 = 247,701.07 : x - Step 2: Convert to fraction form
438,686.31/605,398.12 = 247,701.07/x - Step 3: Cross multiply
438,686.31x = 605,398.12 × 247,701.07 - Step 4: Simplify right side
438,686.31x = 149,957,762,237.48 - Step 5: Solve for x
x = 149,957,762,237.48/438,686.31 - Step 6: Final answer
x = 341,833.69
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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.