Finding the Fourth Proportional to 286,344.03, 429,522.18 and 86,664.09
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Solution
The fourth proportional to 286,344.03, 429,522.18 and 86,664.09 is: 129,997.99
Step by Step Solution
- Step 1: Write the proportion equation
286,344.03 : 429,522.18 = 86,664.09 : x - Step 2: Convert to fraction form
286,344.03/429,522.18 = 86,664.09/x - Step 3: Cross multiply
286,344.03x = 429,522.18 × 86,664.09 - Step 4: Simplify right side
286,344.03x = 37,224,148,864.52 - Step 5: Solve for x
x = 37,224,148,864.52/286,344.03 - Step 6: Final answer
x = 129,997.99
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1.5x scale
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.