Finding the Fourth Proportional to 288,574.20, 432,861.30 and 235,430.10
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Solution
The fourth proportional to 288,574.20, 432,861.30 and 235,430.10 is: 353,145.15
Step by Step Solution
- Step 1: Write the proportion equation
288,574.20 : 432,861.30 = 235,430.10 : x - Step 2: Convert to fraction form
288,574.20/432,861.30 = 235,430.10/x - Step 3: Cross multiply
288,574.20x = 432,861.30 × 235,430.10 - Step 4: Simplify right side
288,574.20x = 101,908,579,145.13 - Step 5: Solve for x
x = 101,908,579,145.13/288,574.20 - Step 6: Final answer
x = 353,145.15
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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.