Finding the Fourth Proportional to 403,125.40, 556,336.02 and 231,071.99
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Solution
The fourth proportional to 403,125.40, 556,336.02 and 231,071.99 is: 318,892.51
Step by Step Solution
- Step 1: Write the proportion equation
403,125.40 : 556,336.02 = 231,071.99 : x - Step 2: Convert to fraction form
403,125.40/556,336.02 = 231,071.99/x - Step 3: Cross multiply
403,125.40x = 556,336.02 × 231,071.99 - Step 4: Simplify right side
403,125.40x = 128,553,668,468.40 - Step 5: Solve for x
x = 128,553,668,468.40/403,125.40 - Step 6: Final answer
x = 318,892.51
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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.