Finding the Fourth Proportional to 314,987.84, 471,955.76 and 221,325.92
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Solution
The fourth proportional to 314,987.84, 471,955.76 and 221,325.92 is: 331,619.29
Step by Step Solution
- Step 1: Write the proportion equation
314,987.84 : 471,955.76 = 221,325.92 : x - Step 2: Convert to fraction form
314,987.84/471,955.76 = 221,325.92/x - Step 3: Cross multiply
314,987.84x = 471,955.76 × 221,325.92 - Step 4: Simplify right side
314,987.84x = 104,456,042,781.30 - Step 5: Solve for x
x = 104,456,042,781.30/314,987.84 - Step 6: Final answer
x = 331,619.29
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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.