Finding the Fourth Proportional to 343,000.36, 512,053.53 and 320,206.48
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Solution
The fourth proportional to 343,000.36, 512,053.53 and 320,206.48 is: 478,025.32
Step by Step Solution
- Step 1: Write the proportion equation
343,000.36 : 512,053.53 = 320,206.48 : x - Step 2: Convert to fraction form
343,000.36/512,053.53 = 320,206.48/x - Step 3: Cross multiply
343,000.36x = 512,053.53 × 320,206.48 - Step 4: Simplify right side
343,000.36x = 163,962,858,412.87 - Step 5: Solve for x
x = 163,962,858,412.87/343,000.36 - Step 6: Final answer
x = 478,025.32
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1.5x scale
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.