Finding the Fourth Proportional to 387,637.77, 581,459.09 and 121,377.81
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Solution
The fourth proportional to 387,637.77, 581,459.09 and 121,377.81 is: 182,067.48
Step by Step Solution
- Step 1: Write the proportion equation
387,637.77 : 581,459.09 = 121,377.81 : x - Step 2: Convert to fraction form
387,637.77/581,459.09 = 121,377.81/x - Step 3: Cross multiply
387,637.77x = 581,459.09 × 121,377.81 - Step 4: Simplify right side
387,637.77x = 70,576,230,341.90 - Step 5: Solve for x
x = 70,576,230,341.90/387,637.77 - Step 6: Final answer
x = 182,067.48
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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.