Finding the Fourth Proportional to 307,243.40, 423,961.64 and 171,267.08
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Solution
The fourth proportional to 307,243.40, 423,961.64 and 171,267.08 is: 236,329.48
Step by Step Solution
- Step 1: Write the proportion equation
307,243.40 : 423,961.64 = 171,267.08 : x - Step 2: Convert to fraction form
307,243.40/423,961.64 = 171,267.08/x - Step 3: Cross multiply
307,243.40x = 423,961.64 × 171,267.08 - Step 4: Simplify right side
307,243.40x = 72,610,672,114.81 - Step 5: Solve for x
x = 72,610,672,114.81/307,243.40 - Step 6: Final answer
x = 236,329.48
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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.