Finding the Fourth Proportional to 320,643.68, 442,408.64 and 207,330.08
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Solution
The fourth proportional to 320,643.68, 442,408.64 and 207,330.08 is: 286,064.02
Step by Step Solution
- Step 1: Write the proportion equation
320,643.68 : 442,408.64 = 207,330.08 : x - Step 2: Convert to fraction form
320,643.68/442,408.64 = 207,330.08/x - Step 3: Cross multiply
320,643.68x = 442,408.64 × 207,330.08 - Step 4: Simplify right side
320,643.68x = 91,724,618,723.89 - Step 5: Solve for x
x = 91,724,618,723.89/320,643.68 - Step 6: Final answer
x = 286,064.02
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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.