Finding the Fourth Proportional to 438,920.68, 605,703.24 and 245,332.92
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Solution
The fourth proportional to 438,920.68, 605,703.24 and 245,332.92 is: 338,555.35
Step by Step Solution
- Step 1: Write the proportion equation
438,920.68 : 605,703.24 = 245,332.92 : x - Step 2: Convert to fraction form
438,920.68/605,703.24 = 245,332.92/x - Step 3: Cross multiply
438,920.68x = 605,703.24 × 245,332.92 - Step 4: Simplify right side
438,920.68x = 148,598,944,522.66 - Step 5: Solve for x
x = 148,598,944,522.66/438,920.68 - Step 6: Final answer
x = 338,555.35
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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.