Finding the Fourth Proportional to 368,279.21, 508,220.29 and 207,134.19
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Solution
The fourth proportional to 368,279.21, 508,220.29 and 207,134.19 is: 285,842.36
Step by Step Solution
- Step 1: Write the proportion equation
368,279.21 : 508,220.29 = 207,134.19 : x - Step 2: Convert to fraction form
368,279.21/508,220.29 = 207,134.19/x - Step 3: Cross multiply
368,279.21x = 508,220.29 × 207,134.19 - Step 4: Simplify right side
368,279.21x = 105,269,797,592.88 - Step 5: Solve for x
x = 105,269,797,592.88/368,279.21 - Step 6: Final answer
x = 285,842.36
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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.