Finding the Fourth Proportional to 343,813.60, 513,207.77 and 318,488.14
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Solution
The fourth proportional to 343,813.60, 513,207.77 and 318,488.14 is: 475,404.66
Step by Step Solution
- Step 1: Write the proportion equation
343,813.60 : 513,207.77 = 318,488.14 : x - Step 2: Convert to fraction form
343,813.60/513,207.77 = 318,488.14/x - Step 3: Cross multiply
343,813.60x = 513,207.77 × 318,488.14 - Step 4: Simplify right side
343,813.60x = 163,450,588,100.85 - Step 5: Solve for x
x = 163,450,588,100.85/343,813.60 - Step 6: Final answer
x = 475,404.66
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.