Finding the Fourth Proportional to 319,621.92, 479,727.36 and 161,962.08
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Solution
The fourth proportional to 319,621.92, 479,727.36 and 161,962.08 is: 243,092.34
Step by Step Solution
- Step 1: Write the proportion equation
319,621.92 : 479,727.36 = 161,962.08 : x - Step 2: Convert to fraction form
319,621.92/479,727.36 = 161,962.08/x - Step 3: Cross multiply
319,621.92x = 479,727.36 × 161,962.08 - Step 4: Simplify right side
319,621.92x = 77,697,641,058.51 - Step 5: Solve for x
x = 77,697,641,058.51/319,621.92 - Step 6: Final answer
x = 243,092.34
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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.