Finding the Fourth Proportional to 118,258.30, 177,398.79 and 39,378.07
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Solution
The fourth proportional to 118,258.30, 177,398.79 and 39,378.07 is: 59,070.88
Step by Step Solution
- Step 1: Write the proportion equation
118,258.30 : 177,398.79 = 39,378.07 : x - Step 2: Convert to fraction form
118,258.30/177,398.79 = 39,378.07/x - Step 3: Cross multiply
118,258.30x = 177,398.79 × 39,378.07 - Step 4: Simplify right side
118,258.30x = 6,985,621,970.54 - Step 5: Solve for x
x = 6,985,621,970.54/118,258.30 - Step 6: Final answer
x = 59,070.88
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.