Finding the Fourth Proportional to 395,398.84, 545,649.42 and 214,110.76
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Solution
The fourth proportional to 395,398.84, 545,649.42 and 214,110.76 is: 295,472.32
Step by Step Solution
- Step 1: Write the proportion equation
395,398.84 : 545,649.42 = 214,110.76 : x - Step 2: Convert to fraction form
395,398.84/545,649.42 = 214,110.76/x - Step 3: Cross multiply
395,398.84x = 545,649.42 × 214,110.76 - Step 4: Simplify right side
395,398.84x = 116,829,411,869.46 - Step 5: Solve for x
x = 116,829,411,869.46/395,398.84 - Step 6: Final answer
x = 295,472.32
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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.