Finding the Fourth Proportional to 307,877.12, 424,866.24 and 171,913.28
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Solution
The fourth proportional to 307,877.12, 424,866.24 and 171,913.28 is: 237,237.99
Step by Step Solution
- Step 1: Write the proportion equation
307,877.12 : 424,866.24 = 171,913.28 : x - Step 2: Convert to fraction form
307,877.12/424,866.24 = 171,913.28/x - Step 3: Cross multiply
307,877.12x = 424,866.24 × 171,913.28 - Step 4: Simplify right side
307,877.12x = 73,040,148,879.67 - Step 5: Solve for x
x = 73,040,148,879.67/307,877.12 - Step 6: Final answer
x = 237,237.99
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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.