Finding the Fourth Proportional to 419,616.84, 628,864.74 and 153,126.84
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Solution
The fourth proportional to 419,616.84, 628,864.74 and 153,126.84 is: 229,485.71
Step by Step Solution
- Step 1: Write the proportion equation
419,616.84 : 628,864.74 = 153,126.84 : x - Step 2: Convert to fraction form
419,616.84/628,864.74 = 153,126.84/x - Step 3: Cross multiply
419,616.84x = 628,864.74 × 153,126.84 - Step 4: Simplify right side
419,616.84x = 96,296,070,423.62 - Step 5: Solve for x
x = 96,296,070,423.62/419,616.84 - Step 6: Final answer
x = 229,485.71
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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.