Finding the Fourth Proportional to 399,778.04, 551,640.36 and 256,731.84
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Solution
The fourth proportional to 399,778.04, 551,640.36 and 256,731.84 is: 354,255.69
Step by Step Solution
- Step 1: Write the proportion equation
399,778.04 : 551,640.36 = 256,731.84 : x - Step 2: Convert to fraction form
399,778.04/551,640.36 = 256,731.84/x - Step 3: Cross multiply
399,778.04x = 551,640.36 × 256,731.84 - Step 4: Simplify right side
399,778.04x = 141,623,644,641.06 - Step 5: Solve for x
x = 141,623,644,641.06/399,778.04 - Step 6: Final answer
x = 354,255.69
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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.