Finding the Fourth Proportional to 420,535.08, 580,351.50 and 239,273.28
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Solution
The fourth proportional to 420,535.08, 580,351.50 and 239,273.28 is: 330,204.57
Step by Step Solution
- Step 1: Write the proportion equation
420,535.08 : 580,351.50 = 239,273.28 : x - Step 2: Convert to fraction form
420,535.08/580,351.50 = 239,273.28/x - Step 3: Cross multiply
420,535.08x = 580,351.50 × 239,273.28 - Step 4: Simplify right side
420,535.08x = 138,862,606,957.92 - Step 5: Solve for x
x = 138,862,606,957.92/420,535.08 - Step 6: Final answer
x = 330,204.57
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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.