Finding the Fourth Proportional to 521,108.48, 781,649.76 and 147,126.08
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Solution
The fourth proportional to 521,108.48, 781,649.76 and 147,126.08 is: 220,685.46
Step by Step Solution
- Step 1: Write the proportion equation
521,108.48 : 781,649.76 = 147,126.08 : x - Step 2: Convert to fraction form
521,108.48/781,649.76 = 147,126.08/x - Step 3: Cross multiply
521,108.48x = 781,649.76 × 147,126.08 - Step 4: Simplify right side
521,108.48x = 115,001,065,121.74 - Step 5: Solve for x
x = 115,001,065,121.74/521,108.48 - Step 6: Final answer
x = 220,685.46
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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.