Finding the Fourth Proportional to 419,159.16, 578,439.71 and 228,173.99
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Solution
The fourth proportional to 419,159.16, 578,439.71 and 228,173.99 is: 314,880.13
Step by Step Solution
- Step 1: Write the proportion equation
419,159.16 : 578,439.71 = 228,173.99 : x - Step 2: Convert to fraction form
419,159.16/578,439.71 = 228,173.99/x - Step 3: Cross multiply
419,159.16x = 578,439.71 × 228,173.99 - Step 4: Simplify right side
419,159.16x = 131,984,892,572.07 - Step 5: Solve for x
x = 131,984,892,572.07/419,159.16 - Step 6: Final answer
x = 314,880.13
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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.