Finding the Fourth Proportional to 387,779.66, 581,676.77 and 121,534.28
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Solution
The fourth proportional to 387,779.66, 581,676.77 and 121,534.28 is: 182,303.70
Step by Step Solution
- Step 1: Write the proportion equation
387,779.66 : 581,676.77 = 121,534.28 : x - Step 2: Convert to fraction form
387,779.66/581,676.77 = 121,534.28/x - Step 3: Cross multiply
387,779.66x = 581,676.77 × 121,534.28 - Step 4: Simplify right side
387,779.66x = 70,693,664,830.13 - Step 5: Solve for x
x = 70,693,664,830.13/387,779.66 - Step 6: Final answer
x = 182,303.70
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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.