Finding the Fourth Proportional to 402,680.24, 555,699.84 and 221,410.70
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Solution
The fourth proportional to 402,680.24, 555,699.84 and 221,410.70 is: 305,547.38
Step by Step Solution
- Step 1: Write the proportion equation
402,680.24 : 555,699.84 = 221,410.70 : x - Step 2: Convert to fraction form
402,680.24/555,699.84 = 221,410.70/x - Step 3: Cross multiply
402,680.24x = 555,699.84 × 221,410.70 - Step 4: Simplify right side
402,680.24x = 123,037,890,564.29 - Step 5: Solve for x
x = 123,037,890,564.29/402,680.24 - Step 6: Final answer
x = 305,547.38
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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.