Finding the Fourth Proportional to 355,133.97, 489,963.30 and 202,133.88
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Solution
The fourth proportional to 355,133.97, 489,963.30 and 202,133.88 is: 278,875.55
Step by Step Solution
- Step 1: Write the proportion equation
355,133.97 : 489,963.30 = 202,133.88 : x - Step 2: Convert to fraction form
355,133.97/489,963.30 = 202,133.88/x - Step 3: Cross multiply
355,133.97x = 489,963.30 × 202,133.88 - Step 4: Simplify right side
355,133.97x = 99,038,182,886.60 - Step 5: Solve for x
x = 99,038,182,886.60/355,133.97 - Step 6: Final answer
x = 278,875.55
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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.