Finding the Fourth Proportional to 455,275.62, 628,315.11 and 251,365.80
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Solution
The fourth proportional to 455,275.62, 628,315.11 and 251,365.80 is: 346,903.99
Step by Step Solution
- Step 1: Write the proportion equation
455,275.62 : 628,315.11 = 251,365.80 : x - Step 2: Convert to fraction form
455,275.62/628,315.11 = 251,365.80/x - Step 3: Cross multiply
455,275.62x = 628,315.11 × 251,365.80 - Step 4: Simplify right side
455,275.62x = 157,936,930,277.24 - Step 5: Solve for x
x = 157,936,930,277.24/455,275.62 - Step 6: Final answer
x = 346,903.99
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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.