Finding the Fourth Proportional to 128,244.17, 192,386.93 and 39,497.65
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Solution
The fourth proportional to 128,244.17, 192,386.93 and 39,497.65 is: 59,252.84
Step by Step Solution
- Step 1: Write the proportion equation
128,244.17 : 192,386.93 = 39,497.65 : x - Step 2: Convert to fraction form
128,244.17/192,386.93 = 39,497.65/x - Step 3: Cross multiply
128,244.17x = 192,386.93 × 39,497.65 - Step 4: Simplify right side
128,244.17x = 7,598,830,947.26 - Step 5: Solve for x
x = 7,598,830,947.26/128,244.17 - Step 6: Final answer
x = 59,252.84
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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.