Finding the Fourth Proportional to 317,603.81, 438,293.99 and 174,373.08
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Solution
The fourth proportional to 317,603.81, 438,293.99 and 174,373.08 is: 240,635.25
Step by Step Solution
- Step 1: Write the proportion equation
317,603.81 : 438,293.99 = 174,373.08 : x - Step 2: Convert to fraction form
317,603.81/438,293.99 = 174,373.08/x - Step 3: Cross multiply
317,603.81x = 438,293.99 × 174,373.08 - Step 4: Simplify right side
317,603.81x = 76,426,672,109.92 - Step 5: Solve for x
x = 76,426,672,109.92/317,603.81 - Step 6: Final answer
x = 240,635.25
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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.