Finding the Fourth Proportional to 398,987.24, 550,602.16 and 255,747.17
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Solution
The fourth proportional to 398,987.24, 550,602.16 and 255,747.17 is: 352,930.95
Step by Step Solution
- Step 1: Write the proportion equation
398,987.24 : 550,602.16 = 255,747.17 : x - Step 2: Convert to fraction form
398,987.24/550,602.16 = 255,747.17/x - Step 3: Cross multiply
398,987.24x = 550,602.16 × 255,747.17 - Step 4: Simplify right side
398,987.24x = 140,814,944,953.03 - Step 5: Solve for x
x = 140,814,944,953.03/398,987.24 - Step 6: Final answer
x = 352,930.95
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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.