Finding the Fourth Proportional to 288,039.62, 432,279.95 and 130,378.79
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Solution
The fourth proportional to 288,039.62, 432,279.95 and 130,378.79 is: 195,668.00
Step by Step Solution
- Step 1: Write the proportion equation
288,039.62 : 432,279.95 = 130,378.79 : x - Step 2: Convert to fraction form
288,039.62/432,279.95 = 130,378.79/x - Step 3: Cross multiply
288,039.62x = 432,279.95 × 130,378.79 - Step 4: Simplify right side
288,039.62x = 56,360,136,822.26 - Step 5: Solve for x
x = 56,360,136,822.26/288,039.62 - Step 6: Final answer
x = 195,668.00
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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.