Finding the Fourth Proportional to 368,623.06, 553,067.70 and 128,772.40
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Solution
The fourth proportional to 368,623.06, 553,067.70 and 128,772.40 is: 193,205.09
Step by Step Solution
- Step 1: Write the proportion equation
368,623.06 : 553,067.70 = 128,772.40 : x - Step 2: Convert to fraction form
368,623.06/553,067.70 = 128,772.40/x - Step 3: Cross multiply
368,623.06x = 553,067.70 × 128,772.40 - Step 4: Simplify right side
368,623.06x = 71,219,852,326.14 - Step 5: Solve for x
x = 71,219,852,326.14/368,623.06 - Step 6: Final answer
x = 193,205.09
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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.