Finding the Fourth Proportional to 398,955.96, 550,630.44 and 237,821.28
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Solution
The fourth proportional to 398,955.96, 550,630.44 and 237,821.28 is: 328,235.82
Step by Step Solution
- Step 1: Write the proportion equation
398,955.96 : 550,630.44 = 237,821.28 : x - Step 2: Convert to fraction form
398,955.96/550,630.44 = 237,821.28/x - Step 3: Cross multiply
398,955.96x = 550,630.44 × 237,821.28 - Step 4: Simplify right side
398,955.96x = 130,951,636,047.76 - Step 5: Solve for x
x = 130,951,636,047.76/398,955.96 - Step 6: Final answer
x = 328,235.82
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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.