Finding the Fourth Proportional to 358,649.60, 537,974.40 and 122,259.20
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Solution
The fourth proportional to 358,649.60, 537,974.40 and 122,259.20 is: 183,388.80
Step by Step Solution
- Step 1: Write the proportion equation
358,649.60 : 537,974.40 = 122,259.20 : x - Step 2: Convert to fraction form
358,649.60/537,974.40 = 122,259.20/x - Step 3: Cross multiply
358,649.60x = 537,974.40 × 122,259.20 - Step 4: Simplify right side
358,649.60x = 65,772,319,764.48 - Step 5: Solve for x
x = 65,772,319,764.48/358,649.60 - Step 6: Final answer
x = 183,388.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.