Finding the Fourth Proportional to 415,649.84, 623,548.20 and 135,117.68
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Solution
The fourth proportional to 415,649.84, 623,548.20 and 135,117.68 is: 202,700.39
Step by Step Solution
- Step 1: Write the proportion equation
415,649.84 : 623,548.20 = 135,117.68 : x - Step 2: Convert to fraction form
415,649.84/623,548.20 = 135,117.68/x - Step 3: Cross multiply
415,649.84x = 623,548.20 × 135,117.68 - Step 4: Simplify right side
415,649.84x = 84,252,386,152.18 - Step 5: Solve for x
x = 84,252,386,152.18/415,649.84 - Step 6: Final answer
x = 202,700.39
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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.