Finding the Fourth Proportional to 320,328.80, 442,053.60 and 193,029.04
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Solution
The fourth proportional to 320,328.80, 442,053.60 and 193,029.04 is: 266,379.99
Step by Step Solution
- Step 1: Write the proportion equation
320,328.80 : 442,053.60 = 193,029.04 : x - Step 2: Convert to fraction form
320,328.80/442,053.60 = 193,029.04/x - Step 3: Cross multiply
320,328.80x = 442,053.60 × 193,029.04 - Step 4: Simplify right side
320,328.80x = 85,329,182,036.54 - Step 5: Solve for x
x = 85,329,182,036.54/320,328.80 - Step 6: Final answer
x = 266,379.99
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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.