Finding the Fourth Proportional to 257,808.99, 386,732.12 and 107,898.45
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Solution
The fourth proportional to 257,808.99, 386,732.12 and 107,898.45 is: 161,855.47
Step by Step Solution
- Step 1: Write the proportion equation
257,808.99 : 386,732.12 = 107,898.45 : x - Step 2: Convert to fraction form
257,808.99/386,732.12 = 107,898.45/x - Step 3: Cross multiply
257,808.99x = 386,732.12 × 107,898.45 - Step 4: Simplify right side
257,808.99x = 41,727,795,773.72 - Step 5: Solve for x
x = 41,727,795,773.72/257,808.99 - Step 6: Final answer
x = 161,855.47
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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.