Finding the Fourth Proportional to 318,002.82, 438,870.81 and 216,253.99
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Solution
The fourth proportional to 318,002.82, 438,870.81 and 216,253.99 is: 298,448.81
Step by Step Solution
- Step 1: Write the proportion equation
318,002.82 : 438,870.81 = 216,253.99 : x - Step 2: Convert to fraction form
318,002.82/438,870.81 = 216,253.99/x - Step 3: Cross multiply
318,002.82x = 438,870.81 × 216,253.99 - Step 4: Simplify right side
318,002.82x = 94,907,563,757.03 - Step 5: Solve for x
x = 94,907,563,757.03/318,002.82 - Step 6: Final answer
x = 298,448.81
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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.