Finding the Fourth Proportional to 343,812.60, 513,206.28 and 318,487.14
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Solution
The fourth proportional to 343,812.60, 513,206.28 and 318,487.14 is: 475,403.17
Step by Step Solution
- Step 1: Write the proportion equation
343,812.60 : 513,206.28 = 318,487.14 : x - Step 2: Convert to fraction form
343,812.60/513,206.28 = 318,487.14/x - Step 3: Cross multiply
343,812.60x = 513,206.28 × 318,487.14 - Step 4: Simplify right side
343,812.60x = 163,449,600,347.24 - Step 5: Solve for x
x = 163,449,600,347.24/343,812.60 - Step 6: Final answer
x = 475,403.17
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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.