Finding the Fourth Proportional to 307,813.80, 461,720.70 and 266,341.80
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Solution
The fourth proportional to 307,813.80, 461,720.70 and 266,341.80 is: 399,512.70
Step by Step Solution
- Step 1: Write the proportion equation
307,813.80 : 461,720.70 = 266,341.80 : x - Step 2: Convert to fraction form
307,813.80/461,720.70 = 266,341.80/x - Step 3: Cross multiply
307,813.80x = 461,720.70 × 266,341.80 - Step 4: Simplify right side
307,813.80x = 122,975,522,335.26 - Step 5: Solve for x
x = 122,975,522,335.26/307,813.80 - Step 6: Final answer
x = 399,512.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.