Finding the Fourth Proportional to 385,497.99, 531,978.93 and 213,406.02
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Solution
The fourth proportional to 385,497.99, 531,978.93 and 213,406.02 is: 294,495.71
Step by Step Solution
- Step 1: Write the proportion equation
385,497.99 : 531,978.93 = 213,406.02 : x - Step 2: Convert to fraction form
385,497.99/531,978.93 = 213,406.02/x - Step 3: Cross multiply
385,497.99x = 531,978.93 × 213,406.02 - Step 4: Simplify right side
385,497.99x = 113,527,506,175.16 - Step 5: Solve for x
x = 113,527,506,175.16/385,497.99 - Step 6: Final answer
x = 294,495.71
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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.