Finding the Fourth Proportional to 455,276.62, 628,316.49 and 251,366.80
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Solution
The fourth proportional to 455,276.62, 628,316.49 and 251,366.80 is: 346,905.37
Step by Step Solution
- Step 1: Write the proportion equation
455,276.62 : 628,316.49 = 251,366.80 : x - Step 2: Convert to fraction form
455,276.62/628,316.49 = 251,366.80/x - Step 3: Cross multiply
455,276.62x = 628,316.49 × 251,366.80 - Step 4: Simplify right side
455,276.62x = 157,937,905,478.53 - Step 5: Solve for x
x = 157,937,905,478.53/455,276.62 - Step 6: Final answer
x = 346,905.37
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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.