Finding the Fourth Proportional to 464,106.09, 640,531.82 and 257,420.45
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Solution
The fourth proportional to 464,106.09, 640,531.82 and 257,420.45 is: 355,276.50
Step by Step Solution
- Step 1: Write the proportion equation
464,106.09 : 640,531.82 = 257,420.45 : x - Step 2: Convert to fraction form
464,106.09/640,531.82 = 257,420.45/x - Step 3: Cross multiply
464,106.09x = 640,531.82 × 257,420.45 - Step 4: Simplify right side
464,106.09x = 164,885,987,572.30 - Step 5: Solve for x
x = 164,885,987,572.30/464,106.09 - Step 6: Final answer
x = 355,276.50
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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.