Finding the Fourth Proportional to 263,430.84, 363,535.40 and 142,572.12
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Solution
The fourth proportional to 263,430.84, 363,535.40 and 142,572.12 is: 196,749.98
Step by Step Solution
- Step 1: Write the proportion equation
263,430.84 : 363,535.40 = 142,572.12 : x - Step 2: Convert to fraction form
263,430.84/363,535.40 = 142,572.12/x - Step 3: Cross multiply
263,430.84x = 363,535.40 × 142,572.12 - Step 4: Simplify right side
263,430.84x = 51,830,012,673.05 - Step 5: Solve for x
x = 51,830,012,673.05/263,430.84 - Step 6: Final answer
x = 196,749.98
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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.