Finding the Fourth Proportional to 316,801.06, 475,203.21 and 80,143.95
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Solution
The fourth proportional to 316,801.06, 475,203.21 and 80,143.95 is: 120,216.33
Step by Step Solution
- Step 1: Write the proportion equation
316,801.06 : 475,203.21 = 80,143.95 : x - Step 2: Convert to fraction form
316,801.06/475,203.21 = 80,143.95/x - Step 3: Cross multiply
316,801.06x = 475,203.21 × 80,143.95 - Step 4: Simplify right side
316,801.06x = 38,084,662,302.08 - Step 5: Solve for x
x = 38,084,662,302.08/316,801.06 - Step 6: Final answer
x = 120,216.33
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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.