Finding the Fourth Proportional to 247,787.25, 341,918.99 and 137,403.12
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Solution
The fourth proportional to 247,787.25, 341,918.99 and 137,403.12 is: 189,601.10
Step by Step Solution
- Step 1: Write the proportion equation
247,787.25 : 341,918.99 = 137,403.12 : x - Step 2: Convert to fraction form
247,787.25/341,918.99 = 137,403.12/x - Step 3: Cross multiply
247,787.25x = 341,918.99 × 137,403.12 - Step 4: Simplify right side
247,787.25x = 46,980,736,013.25 - Step 5: Solve for x
x = 46,980,736,013.25/247,787.25 - Step 6: Final answer
x = 189,601.10
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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.