Finding the Fourth Proportional to 370,239.32, 510,778.10 and 225,021.70
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Solution
The fourth proportional to 370,239.32, 510,778.10 and 225,021.70 is: 310,437.47
Step by Step Solution
- Step 1: Write the proportion equation
370,239.32 : 510,778.10 = 225,021.70 : x - Step 2: Convert to fraction form
370,239.32/510,778.10 = 225,021.70/x - Step 3: Cross multiply
370,239.32x = 510,778.10 × 225,021.70 - Step 4: Simplify right side
370,239.32x = 114,936,155,898.13 - Step 5: Solve for x
x = 114,936,155,898.13/370,239.32 - Step 6: Final answer
x = 310,437.47
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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.