Finding the Fourth Proportional to 307,926.29, 425,125.87 and 211,288.91
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Solution
The fourth proportional to 307,926.29, 425,125.87 and 211,288.91 is: 291,707.40
Step by Step Solution
- Step 1: Write the proportion equation
307,926.29 : 425,125.87 = 211,288.91 : x - Step 2: Convert to fraction form
307,926.29/425,125.87 = 211,288.91/x - Step 3: Cross multiply
307,926.29x = 425,125.87 × 211,288.91 - Step 4: Simplify right side
307,926.29x = 89,824,379,031.25 - Step 5: Solve for x
x = 89,824,379,031.25/307,926.29 - Step 6: Final answer
x = 291,707.40
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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.