Finding the Fourth Proportional to 288,826.13, 398,701.37 and 175,688.21
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Solution
The fourth proportional to 288,826.13, 398,701.37 and 175,688.21 is: 242,523.52
Step by Step Solution
- Step 1: Write the proportion equation
288,826.13 : 398,701.37 = 175,688.21 : x - Step 2: Convert to fraction form
288,826.13/398,701.37 = 175,688.21/x - Step 3: Cross multiply
288,826.13x = 398,701.37 × 175,688.21 - Step 4: Simplify right side
288,826.13x = 70,047,130,019.85 - Step 5: Solve for x
x = 70,047,130,019.85/288,826.13 - Step 6: Final answer
x = 242,523.52
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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.