Finding the Fourth Proportional to 288,936.08, 398,710.10 and 161,587.07
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Solution
The fourth proportional to 288,936.08, 398,710.10 and 161,587.07 is: 222,978.02
Step by Step Solution
- Step 1: Write the proportion equation
288,936.08 : 398,710.10 = 161,587.07 : x - Step 2: Convert to fraction form
288,936.08/398,710.10 = 161,587.07/x - Step 3: Cross multiply
288,936.08x = 398,710.10 × 161,587.07 - Step 4: Simplify right side
288,936.08x = 64,426,394,036.92 - Step 5: Solve for x
x = 64,426,394,036.92/288,936.08 - Step 6: Final answer
x = 222,978.02
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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.