Finding the Fourth Proportional to 402,492.38, 555,451.99 and 221,201.02
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Solution
The fourth proportional to 402,492.38, 555,451.99 and 221,201.02 is: 305,264.27
Step by Step Solution
- Step 1: Write the proportion equation
402,492.38 : 555,451.99 = 221,201.02 : x - Step 2: Convert to fraction form
402,492.38/555,451.99 = 221,201.02/x - Step 3: Cross multiply
402,492.38x = 555,451.99 × 221,201.02 - Step 4: Simplify right side
402,492.38x = 122,866,544,807.40 - Step 5: Solve for x
x = 122,866,544,807.40/402,492.38 - Step 6: Final answer
x = 305,264.27
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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.