Finding the Fourth Proportional to 369,146.43, 509,423.45 and 214,128.23
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Solution
The fourth proportional to 369,146.43, 509,423.45 and 214,128.23 is: 295,497.75
Step by Step Solution
- Step 1: Write the proportion equation
369,146.43 : 509,423.45 = 214,128.23 : x - Step 2: Convert to fraction form
369,146.43/509,423.45 = 214,128.23/x - Step 3: Cross multiply
369,146.43x = 509,423.45 × 214,128.23 - Step 4: Simplify right side
369,146.43x = 109,081,938,051.24 - Step 5: Solve for x
x = 109,081,938,051.24/369,146.43 - Step 6: Final answer
x = 295,497.75
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1.5x scale
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.