Finding the Fourth Proportional to 288,004.12, 397,455.23 and 157,188.92
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Solution
The fourth proportional to 288,004.12, 397,455.23 and 157,188.92 is: 216,925.92
Step by Step Solution
- Step 1: Write the proportion equation
288,004.12 : 397,455.23 = 157,188.92 : x - Step 2: Convert to fraction form
288,004.12/397,455.23 = 157,188.92/x - Step 3: Cross multiply
288,004.12x = 397,455.23 × 157,188.92 - Step 4: Simplify right side
288,004.12x = 62,475,558,352.05 - Step 5: Solve for x
x = 62,475,558,352.05/288,004.12 - Step 6: Final answer
x = 216,925.92
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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.