Finding the Fourth Proportional to 398,705.36, 598,159.08 and 132,467.28
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Solution
The fourth proportional to 398,705.36, 598,159.08 and 132,467.28 is: 198,734.49
Step by Step Solution
- Step 1: Write the proportion equation
398,705.36 : 598,159.08 = 132,467.28 : x - Step 2: Convert to fraction form
398,705.36/598,159.08 = 132,467.28/x - Step 3: Cross multiply
398,705.36x = 598,159.08 × 132,467.28 - Step 4: Simplify right side
398,705.36x = 79,236,506,334.90 - Step 5: Solve for x
x = 79,236,506,334.90/398,705.36 - Step 6: Final answer
x = 198,734.49
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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.