Finding the Fourth Proportional to 257,947.88, 355,968.07 and 144,770.63
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Solution
The fourth proportional to 257,947.88, 355,968.07 and 144,770.63 is: 199,783.46
Step by Step Solution
- Step 1: Write the proportion equation
257,947.88 : 355,968.07 = 144,770.63 : x - Step 2: Convert to fraction form
257,947.88/355,968.07 = 144,770.63/x - Step 3: Cross multiply
257,947.88x = 355,968.07 × 144,770.63 - Step 4: Simplify right side
257,947.88x = 51,533,719,612.02 - Step 5: Solve for x
x = 51,533,719,612.02/257,947.88 - Step 6: Final answer
x = 199,783.46
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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.