Finding the Fourth Proportional to 405,145.65, 607,718.94 and 105,625.98
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Solution
The fourth proportional to 405,145.65, 607,718.94 and 105,625.98 is: 158,439.09
Step by Step Solution
- Step 1: Write the proportion equation
405,145.65 : 607,718.94 = 105,625.98 : x - Step 2: Convert to fraction form
405,145.65/607,718.94 = 105,625.98/x - Step 3: Cross multiply
405,145.65x = 607,718.94 × 105,625.98 - Step 4: Simplify right side
405,145.65x = 64,190,908,602.06 - Step 5: Solve for x
x = 64,190,908,602.06/405,145.65 - Step 6: Final answer
x = 158,439.09
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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.