Finding the Fourth Proportional to 223,737.94, 308,772.14 and 128,258.99
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Solution
The fourth proportional to 223,737.94, 308,772.14 and 128,258.99 is: 177,005.31
Step by Step Solution
- Step 1: Write the proportion equation
223,737.94 : 308,772.14 = 128,258.99 : x - Step 2: Convert to fraction form
223,737.94/308,772.14 = 128,258.99/x - Step 3: Cross multiply
223,737.94x = 308,772.14 × 128,258.99 - Step 4: Simplify right side
223,737.94x = 39,602,802,816.54 - Step 5: Solve for x
x = 39,602,802,816.54/223,737.94 - Step 6: Final answer
x = 177,005.31
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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.