Finding the Fourth Proportional to 178,678.80, 268,018.86 and 60,351.18
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Solution
The fourth proportional to 178,678.80, 268,018.86 and 60,351.18 is: 90,526.99
Step by Step Solution
- Step 1: Write the proportion equation
178,678.80 : 268,018.86 = 60,351.18 : x - Step 2: Convert to fraction form
178,678.80/268,018.86 = 60,351.18/x - Step 3: Cross multiply
178,678.80x = 268,018.86 × 60,351.18 - Step 4: Simplify right side
178,678.80x = 16,175,254,463.25 - Step 5: Solve for x
x = 16,175,254,463.25/178,678.80 - Step 6: Final answer
x = 90,526.99
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1.5x scale
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.