Finding the Fourth Proportional to 368,775.34, 508,878.96 and 225,507.70
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Solution
The fourth proportional to 368,775.34, 508,878.96 and 225,507.70 is: 311,181.66
Step by Step Solution
- Step 1: Write the proportion equation
368,775.34 : 508,878.96 = 225,507.70 : x - Step 2: Convert to fraction form
368,775.34/508,878.96 = 225,507.70/x - Step 3: Cross multiply
368,775.34x = 508,878.96 × 225,507.70 - Step 4: Simplify right side
368,775.34x = 114,756,123,847.99 - Step 5: Solve for x
x = 114,756,123,847.99/368,775.34 - Step 6: Final answer
x = 311,181.66
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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.