Finding the Fourth Proportional to 342,649.41, 513,814.17 and 129,252.90
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Solution
The fourth proportional to 342,649.41, 513,814.17 and 129,252.90 is: 193,819.02
Step by Step Solution
- Step 1: Write the proportion equation
342,649.41 : 513,814.17 = 129,252.90 : x - Step 2: Convert to fraction form
342,649.41/513,814.17 = 129,252.90/x - Step 3: Cross multiply
342,649.41x = 513,814.17 × 129,252.90 - Step 4: Simplify right side
342,649.41x = 66,411,971,533.59 - Step 5: Solve for x
x = 66,411,971,533.59/342,649.41 - Step 6: Final answer
x = 193,819.02
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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.