Finding the Fourth Proportional to 315,221.13, 472,415.06 and 115,349.08
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Solution
The fourth proportional to 315,221.13, 472,415.06 and 115,349.08 is: 172,871.16
Step by Step Solution
- Step 1: Write the proportion equation
315,221.13 : 472,415.06 = 115,349.08 : x - Step 2: Convert to fraction form
315,221.13/472,415.06 = 115,349.08/x - Step 3: Cross multiply
315,221.13x = 472,415.06 × 115,349.08 - Step 4: Simplify right side
315,221.13x = 54,492,641,972.40 - Step 5: Solve for x
x = 54,492,641,972.40/315,221.13 - Step 6: Final answer
x = 172,871.16
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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.