Finding the Fourth Proportional to 399,771.29, 551,631.08 and 256,725.09
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Solution
The fourth proportional to 399,771.29, 551,631.08 and 256,725.09 is: 354,246.40
Step by Step Solution
- Step 1: Write the proportion equation
399,771.29 : 551,631.08 = 256,725.09 : x - Step 2: Convert to fraction form
399,771.29/551,631.08 = 256,725.09/x - Step 3: Cross multiply
399,771.29x = 551,631.08 × 256,725.09 - Step 4: Simplify right side
399,771.29x = 141,617,539,301.61 - Step 5: Solve for x
x = 141,617,539,301.61/399,771.29 - Step 6: Final answer
x = 354,246.40
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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.