Finding the Fourth Proportional to 288,542.31, 432,820.86 and 136,703.84
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Solution
The fourth proportional to 288,542.31, 432,820.86 and 136,703.84 is: 205,059.26
Step by Step Solution
- Step 1: Write the proportion equation
288,542.31 : 432,820.86 = 136,703.84 : x - Step 2: Convert to fraction form
288,542.31/432,820.86 = 136,703.84/x - Step 3: Cross multiply
288,542.31x = 432,820.86 × 136,703.84 - Step 4: Simplify right side
288,542.31x = 59,168,272,512.05 - Step 5: Solve for x
x = 59,168,272,512.05/288,542.31 - Step 6: Final answer
x = 205,059.26
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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.