Finding the Fourth Proportional to 288,554.80, 398,206.84 and 157,735.08
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Solution
The fourth proportional to 288,554.80, 398,206.84 and 157,735.08 is: 217,675.08
Step by Step Solution
- Step 1: Write the proportion equation
288,554.80 : 398,206.84 = 157,735.08 : x - Step 2: Convert to fraction form
288,554.80/398,206.84 = 157,735.08/x - Step 3: Cross multiply
288,554.80x = 398,206.84 × 157,735.08 - Step 4: Simplify right side
288,554.80x = 62,811,187,763.95 - Step 5: Solve for x
x = 62,811,187,763.95/288,554.80 - Step 6: Final answer
x = 217,675.08
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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.