Finding the Fourth Proportional to 288,563.80, 432,845.70 and 155,703.55
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Solution
The fourth proportional to 288,563.80, 432,845.70 and 155,703.55 is: 233,555.33
Step by Step Solution
- Step 1: Write the proportion equation
288,563.80 : 432,845.70 = 155,703.55 : x - Step 2: Convert to fraction form
288,563.80/432,845.70 = 155,703.55/x - Step 3: Cross multiply
288,563.80x = 432,845.70 × 155,703.55 - Step 4: Simplify right side
288,563.80x = 67,395,612,092.24 - Step 5: Solve for x
x = 67,395,612,092.24/288,563.80 - Step 6: Final answer
x = 233,555.33
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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.