Finding the Fourth Proportional to 400,040.19, 551,795.34 and 256,572.99
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Solution
The fourth proportional to 400,040.19, 551,795.34 and 256,572.99 is: 353,903.89
Step by Step Solution
- Step 1: Write the proportion equation
400,040.19 : 551,795.34 = 256,572.99 : x - Step 2: Convert to fraction form
400,040.19/551,795.34 = 256,572.99/x - Step 3: Cross multiply
400,040.19x = 551,795.34 × 256,572.99 - Step 4: Simplify right side
400,040.19x = 141,575,780,251.87 - Step 5: Solve for x
x = 141,575,780,251.87/400,040.19 - Step 6: Final answer
x = 353,903.89
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1.5x scale
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.