Finding the Fourth Proportional to 515,101.80, 772,652.70 and 136,021.80
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Solution
The fourth proportional to 515,101.80, 772,652.70 and 136,021.80 is: 204,032.70
Step by Step Solution
- Step 1: Write the proportion equation
515,101.80 : 772,652.70 = 136,021.80 : x - Step 2: Convert to fraction form
515,101.80/772,652.70 = 136,021.80/x - Step 3: Cross multiply
515,101.80x = 772,652.70 × 136,021.80 - Step 4: Simplify right side
515,101.80x = 105,097,611,028.86 - Step 5: Solve for x
x = 105,097,611,028.86/515,101.80 - Step 6: Final answer
x = 204,032.70
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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.