Finding the Fourth Proportional to 455,281.63, 628,272.18 and 251,328.17
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Solution
The fourth proportional to 455,281.63, 628,272.18 and 251,328.17 is: 346,823.78
Step by Step Solution
- Step 1: Write the proportion equation
455,281.63 : 628,272.18 = 251,328.17 : x - Step 2: Convert to fraction form
455,281.63/628,272.18 = 251,328.17/x - Step 3: Cross multiply
455,281.63x = 628,272.18 × 251,328.17 - Step 4: Simplify right side
455,281.63x = 157,902,497,261.31 - Step 5: Solve for x
x = 157,902,497,261.31/455,281.63 - Step 6: Final answer
x = 346,823.78
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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.