Finding the Fourth Proportional to 638,920.71, 958,405.37 and 165,607.47
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Solution
The fourth proportional to 638,920.71, 958,405.37 and 165,607.47 is: 248,417.50
Step by Step Solution
- Step 1: Write the proportion equation
638,920.71 : 958,405.37 = 165,607.47 : x - Step 2: Convert to fraction form
638,920.71/958,405.37 = 165,607.47/x - Step 3: Cross multiply
638,920.71x = 958,405.37 × 165,607.47 - Step 4: Simplify right side
638,920.71x = 158,719,087,732.08 - Step 5: Solve for x
x = 158,719,087,732.08/638,920.71 - Step 6: Final answer
x = 248,417.50
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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.