Finding the Fourth Proportional to 355,220.18, 490,032.95 and 258,273.80
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Solution
The fourth proportional to 355,220.18, 490,032.95 and 258,273.80 is: 356,293.59
Step by Step Solution
- Step 1: Write the proportion equation
355,220.18 : 490,032.95 = 258,273.80 : x - Step 2: Convert to fraction form
355,220.18/490,032.95 = 258,273.80/x - Step 3: Cross multiply
355,220.18x = 490,032.95 × 258,273.80 - Step 4: Simplify right side
355,220.18x = 126,562,670,830.34 - Step 5: Solve for x
x = 126,562,670,830.34/355,220.18 - Step 6: Final answer
x = 356,293.59
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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.