Finding the Fourth Proportional to 288,676.05, 398,356.88 and 159,607.07
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Solution
The fourth proportional to 288,676.05, 398,356.88 and 159,607.07 is: 220,248.86
Step by Step Solution
- Step 1: Write the proportion equation
288,676.05 : 398,356.88 = 159,607.07 : x - Step 2: Convert to fraction form
288,676.05/398,356.88 = 159,607.07/x - Step 3: Cross multiply
288,676.05x = 398,356.88 × 159,607.07 - Step 4: Simplify right side
288,676.05x = 63,580,571,641.32 - Step 5: Solve for x
x = 63,580,571,641.32/288,676.05 - Step 6: Final answer
x = 220,248.86
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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.