Finding the Fourth Proportional to 462,420.36, 638,138.25 and 258,471.07
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Solution
The fourth proportional to 462,420.36, 638,138.25 and 258,471.07 is: 356,689.04
Step by Step Solution
- Step 1: Write the proportion equation
462,420.36 : 638,138.25 = 258,471.07 : x - Step 2: Convert to fraction form
462,420.36/638,138.25 = 258,471.07/x - Step 3: Cross multiply
462,420.36x = 638,138.25 × 258,471.07 - Step 4: Simplify right side
462,420.36x = 164,940,274,690.08 - Step 5: Solve for x
x = 164,940,274,690.08/462,420.36 - Step 6: Final answer
x = 356,689.04
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.