Finding the Fourth Proportional to 306,095.70, 459,143.55 and 212,783.70
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Solution
The fourth proportional to 306,095.70, 459,143.55 and 212,783.70 is: 319,175.55
Step by Step Solution
- Step 1: Write the proportion equation
306,095.70 : 459,143.55 = 212,783.70 : x - Step 2: Convert to fraction form
306,095.70/459,143.55 = 212,783.70/x - Step 3: Cross multiply
306,095.70x = 459,143.55 × 212,783.70 - Step 4: Simplify right side
306,095.70x = 97,698,263,400.14 - Step 5: Solve for x
x = 97,698,263,400.14/306,095.70 - Step 6: Final answer
x = 319,175.55
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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.