Finding the Fourth Proportional to 145,419.40, 218,129.10 and 144,497.80
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Solution
The fourth proportional to 145,419.40, 218,129.10 and 144,497.80 is: 216,746.70
Step by Step Solution
- Step 1: Write the proportion equation
145,419.40 : 218,129.10 = 144,497.80 : x - Step 2: Convert to fraction form
145,419.40/218,129.10 = 144,497.80/x - Step 3: Cross multiply
145,419.40x = 218,129.10 × 144,497.80 - Step 4: Simplify right side
145,419.40x = 31,519,175,065.98 - Step 5: Solve for x
x = 31,519,175,065.98/145,419.40 - Step 6: Final answer
x = 216,746.70
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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.