Finding the Fourth Proportional to 278,487.44, 417,420.11 and 256,068.26
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Solution
The fourth proportional to 278,487.44, 417,420.11 and 256,068.26 is: 383,816.38
Step by Step Solution
- Step 1: Write the proportion equation
278,487.44 : 417,420.11 = 256,068.26 : x - Step 2: Convert to fraction form
278,487.44/417,420.11 = 256,068.26/x - Step 3: Cross multiply
278,487.44x = 417,420.11 × 256,068.26 - Step 4: Simplify right side
278,487.44x = 106,888,037,889.27 - Step 5: Solve for x
x = 106,888,037,889.27/278,487.44 - Step 6: Final answer
x = 383,816.38
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.