Finding the Fourth Proportional to 307,643.67, 424,434.74 and 180,272.79
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Solution
The fourth proportional to 307,643.67, 424,434.74 and 180,272.79 is: 248,709.92
Step by Step Solution
- Step 1: Write the proportion equation
307,643.67 : 424,434.74 = 180,272.79 : x - Step 2: Convert to fraction form
307,643.67/424,434.74 = 180,272.79/x - Step 3: Cross multiply
307,643.67x = 424,434.74 × 180,272.79 - Step 4: Simplify right side
307,643.67x = 76,514,033,851.36 - Step 5: Solve for x
x = 76,514,033,851.36/307,643.67 - Step 6: Final answer
x = 248,709.92
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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.