Finding the Fourth Proportional to 297,005.66, 445,501.14 and 86,645.42
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Solution
The fourth proportional to 297,005.66, 445,501.14 and 86,645.42 is: 129,965.99
Step by Step Solution
- Step 1: Write the proportion equation
297,005.66 : 445,501.14 = 86,645.42 : x - Step 2: Convert to fraction form
297,005.66/445,501.14 = 86,645.42/x - Step 3: Cross multiply
297,005.66x = 445,501.14 × 86,645.42 - Step 4: Simplify right side
297,005.66x = 38,600,633,385.78 - Step 5: Solve for x
x = 38,600,633,385.78/297,005.66 - Step 6: Final answer
x = 129,965.99
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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.