Finding the Fourth Proportional to 306,622.08, 423,139.68 and 172,477.44
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Solution
The fourth proportional to 306,622.08, 423,139.68 and 172,477.44 is: 238,019.55
Step by Step Solution
- Step 1: Write the proportion equation
306,622.08 : 423,139.68 = 172,477.44 : x - Step 2: Convert to fraction form
306,622.08/423,139.68 = 172,477.44/x - Step 3: Cross multiply
306,622.08x = 423,139.68 × 172,477.44 - Step 4: Simplify right side
306,622.08x = 72,982,048,768.82 - Step 5: Solve for x
x = 72,982,048,768.82/306,622.08 - Step 6: Final answer
x = 238,019.55
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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.