Finding the Fourth Proportional to 382,921.84, 528,393.96 and 221,828.74
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Solution
The fourth proportional to 382,921.84, 528,393.96 and 221,828.74 is: 306,101.54
Step by Step Solution
- Step 1: Write the proportion equation
382,921.84 : 528,393.96 = 221,828.74 : x - Step 2: Convert to fraction form
382,921.84/528,393.96 = 221,828.74/x - Step 3: Cross multiply
382,921.84x = 528,393.96 × 221,828.74 - Step 4: Simplify right side
382,921.84x = 117,212,966,370.41 - Step 5: Solve for x
x = 117,212,966,370.41/382,921.84 - Step 6: Final answer
x = 306,101.54
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.