Finding the Fourth Proportional to 387,961.68, 581,298.84 and 135,108.48
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Solution
The fourth proportional to 387,961.68, 581,298.84 and 135,108.48 is: 202,438.56
Step by Step Solution
- Step 1: Write the proportion equation
387,961.68 : 581,298.84 = 135,108.48 : x - Step 2: Convert to fraction form
387,961.68/581,298.84 = 135,108.48/x - Step 3: Cross multiply
387,961.68x = 581,298.84 × 135,108.48 - Step 4: Simplify right side
387,961.68x = 78,538,402,698.16 - Step 5: Solve for x
x = 78,538,402,698.16/387,961.68 - Step 6: Final answer
x = 202,438.56
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.