Finding the Fourth Proportional to 267,711.99, 401,438.80 and 155,420.47
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Solution
The fourth proportional to 267,711.99, 401,438.80 and 155,420.47 is: 233,055.71
Step by Step Solution
- Step 1: Write the proportion equation
267,711.99 : 401,438.80 = 155,420.47 : x - Step 2: Convert to fraction form
267,711.99/401,438.80 = 155,420.47/x - Step 3: Cross multiply
267,711.99x = 401,438.80 × 155,420.47 - Step 4: Simplify right side
267,711.99x = 62,391,807,668.31 - Step 5: Solve for x
x = 62,391,807,668.31/267,711.99 - Step 6: Final answer
x = 233,055.71
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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.