Finding the Fourth Proportional to 211,776.86, 317,572.04 and 99,488.99
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Solution
The fourth proportional to 211,776.86, 317,572.04 and 99,488.99 is: 149,189.67
Step by Step Solution
- Step 1: Write the proportion equation
211,776.86 : 317,572.04 = 99,488.99 : x - Step 2: Convert to fraction form
211,776.86/317,572.04 = 99,488.99/x - Step 3: Cross multiply
211,776.86x = 317,572.04 × 99,488.99 - Step 4: Simplify right side
211,776.86x = 31,594,919,426.53 - Step 5: Solve for x
x = 31,594,919,426.53/211,776.86 - Step 6: Final answer
x = 149,189.67
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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.