Finding the Fourth Proportional to 260,412.35, 390,649.77 and 91,897.88
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Solution
The fourth proportional to 260,412.35, 390,649.77 and 91,897.88 is: 137,857.84
Step by Step Solution
- Step 1: Write the proportion equation
260,412.35 : 390,649.77 = 91,897.88 : x - Step 2: Convert to fraction form
260,412.35/390,649.77 = 91,897.88/x - Step 3: Cross multiply
260,412.35x = 390,649.77 × 91,897.88 - Step 4: Simplify right side
260,412.35x = 35,899,883,732.24 - Step 5: Solve for x
x = 35,899,883,732.24/260,412.35 - Step 6: Final answer
x = 137,857.84
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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.