Finding the Fourth Proportional to 147,272.80, 221,024.40 and 68,396.80
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Solution
The fourth proportional to 147,272.80, 221,024.40 and 68,396.80 is: 102,648.70
Step by Step Solution
- Step 1: Write the proportion equation
147,272.80 : 221,024.40 = 68,396.80 : x - Step 2: Convert to fraction form
147,272.80/221,024.40 = 68,396.80/x - Step 3: Cross multiply
147,272.80x = 221,024.40 × 68,396.80 - Step 4: Simplify right side
147,272.80x = 15,117,361,681.92 - Step 5: Solve for x
x = 15,117,361,681.92/147,272.80 - Step 6: Final answer
x = 102,648.70
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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.