Finding the Fourth Proportional to 288,520.05, 432,780.08 and 155,659.80
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Solution
The fourth proportional to 288,520.05, 432,780.08 and 155,659.80 is: 233,489.70
Step by Step Solution
- Step 1: Write the proportion equation
288,520.05 : 432,780.08 = 155,659.80 : x - Step 2: Convert to fraction form
288,520.05/432,780.08 = 155,659.80/x - Step 3: Cross multiply
288,520.05x = 432,780.08 × 155,659.80 - Step 4: Simplify right side
288,520.05x = 67,366,459,918.49 - Step 5: Solve for x
x = 67,366,459,918.49/288,520.05 - Step 6: Final answer
x = 233,489.70
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.