Finding the Fourth Proportional to 317,927.13, 438,438.82 and 208,838.99
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Solution
The fourth proportional to 317,927.13, 438,438.82 and 208,838.99 is: 288,000.34
Step by Step Solution
- Step 1: Write the proportion equation
317,927.13 : 438,438.82 = 208,838.99 : x - Step 2: Convert to fraction form
317,927.13/438,438.82 = 208,838.99/x - Step 3: Cross multiply
317,927.13x = 438,438.82 × 208,838.99 - Step 4: Simplify right side
317,927.13x = 91,563,120,345.59 - Step 5: Solve for x
x = 91,563,120,345.59/317,927.13 - Step 6: Final answer
x = 288,000.34
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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.