Finding the Fourth Proportional to 210,998.55, 291,178.50 and 115,511.40
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Solution
The fourth proportional to 210,998.55, 291,178.50 and 115,511.40 is: 159,406.00
Step by Step Solution
- Step 1: Write the proportion equation
210,998.55 : 291,178.50 = 115,511.40 : x - Step 2: Convert to fraction form
210,998.55/291,178.50 = 115,511.40/x - Step 3: Cross multiply
210,998.55x = 291,178.50 × 115,511.40 - Step 4: Simplify right side
210,998.55x = 33,634,435,751.73 - Step 5: Solve for x
x = 33,634,435,751.73/210,998.55 - Step 6: Final answer
x = 159,406.00
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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.