Finding the Fourth Proportional to 282,688.66, 390,119.75 and 166,381.05
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Solution
The fourth proportional to 282,688.66, 390,119.75 and 166,381.05 is: 229,611.38
Step by Step Solution
- Step 1: Write the proportion equation
282,688.66 : 390,119.75 = 166,381.05 : x - Step 2: Convert to fraction form
282,688.66/390,119.75 = 166,381.05/x - Step 3: Cross multiply
282,688.66x = 390,119.75 × 166,381.05 - Step 4: Simplify right side
282,688.66x = 64,908,532,830.44 - Step 5: Solve for x
x = 64,908,532,830.44/282,688.66 - Step 6: Final answer
x = 229,611.38
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.