Finding the Fourth Proportional to 384,276.20, 530,279.14 and 214,521.08
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Solution
The fourth proportional to 384,276.20, 530,279.14 and 214,521.08 is: 296,026.80
Step by Step Solution
- Step 1: Write the proportion equation
384,276.20 : 530,279.14 = 214,521.08 : x - Step 2: Convert to fraction form
384,276.20/530,279.14 = 214,521.08/x - Step 3: Cross multiply
384,276.20x = 530,279.14 × 214,521.08 - Step 4: Simplify right side
384,276.20x = 113,756,053,814.27 - Step 5: Solve for x
x = 113,756,053,814.27/384,276.20 - Step 6: Final answer
x = 296,026.80
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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.