Finding the Fourth Proportional to 280,374.24, 386,901.68 and 153,025.12
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Solution
The fourth proportional to 280,374.24, 386,901.68 and 153,025.12 is: 211,166.60
Step by Step Solution
- Step 1: Write the proportion equation
280,374.24 : 386,901.68 = 153,025.12 : x - Step 2: Convert to fraction form
280,374.24/386,901.68 = 153,025.12/x - Step 3: Cross multiply
280,374.24x = 386,901.68 × 153,025.12 - Step 4: Simplify right side
280,374.24x = 59,205,676,010.20 - Step 5: Solve for x
x = 59,205,676,010.20/280,374.24 - Step 6: Final answer
x = 211,166.60
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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.