Finding the Fourth Proportional to 346,882.57, 478,775.21 and 210,887.75
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Solution
The fourth proportional to 346,882.57, 478,775.21 and 210,887.75 is: 291,072.07
Step by Step Solution
- Step 1: Write the proportion equation
346,882.57 : 478,775.21 = 210,887.75 : x - Step 2: Convert to fraction form
346,882.57/478,775.21 = 210,887.75/x - Step 3: Cross multiply
346,882.57x = 478,775.21 × 210,887.75 - Step 4: Simplify right side
346,882.57x = 100,967,826,935.18 - Step 5: Solve for x
x = 100,967,826,935.18/346,882.57 - Step 6: Final answer
x = 291,072.07
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1.5x scale
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.