Finding the Fourth Proportional to 210,945.70, 316,418.55 and 63,201.70
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Solution
The fourth proportional to 210,945.70, 316,418.55 and 63,201.70 is: 94,802.55
Step by Step Solution
- Step 1: Write the proportion equation
210,945.70 : 316,418.55 = 63,201.70 : x - Step 2: Convert to fraction form
210,945.70/316,418.55 = 63,201.70/x - Step 3: Cross multiply
210,945.70x = 316,418.55 × 63,201.70 - Step 4: Simplify right side
210,945.70x = 19,998,190,271.54 - Step 5: Solve for x
x = 19,998,190,271.54/210,945.70 - Step 6: Final answer
x = 94,802.55
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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.