Finding the Fourth Proportional to 405,905.18, 560,140.76 and 224,616.99
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Solution
The fourth proportional to 405,905.18, 560,140.76 and 224,616.99 is: 309,966.80
Step by Step Solution
- Step 1: Write the proportion equation
405,905.18 : 560,140.76 = 224,616.99 : x - Step 2: Convert to fraction form
405,905.18/560,140.76 = 224,616.99/x - Step 3: Cross multiply
405,905.18x = 560,140.76 × 224,616.99 - Step 4: Simplify right side
405,905.18x = 125,817,131,487.51 - Step 5: Solve for x
x = 125,817,131,487.51/405,905.18 - Step 6: Final answer
x = 309,966.80
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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.