Finding the Fourth Proportional to 147,612.80, 221,397.60 and 42,420.80
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Solution
The fourth proportional to 147,612.80, 221,397.60 and 42,420.80 is: 63,624.99
Step by Step Solution
- Step 1: Write the proportion equation
147,612.80 : 221,397.60 = 42,420.80 : x - Step 2: Convert to fraction form
147,612.80/221,397.60 = 42,420.80/x - Step 3: Cross multiply
147,612.80x = 221,397.60 × 42,420.80 - Step 4: Simplify right side
147,612.80x = 9,391,863,310.08 - Step 5: Solve for x
x = 9,391,863,310.08/147,612.80 - Step 6: Final answer
x = 63,624.99
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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.