Finding the Fourth Proportional to 295,637.21, 407,979.74 and 168,312.80
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Solution
The fourth proportional to 295,637.21, 407,979.74 and 168,312.80 is: 232,271.89
Step by Step Solution
- Step 1: Write the proportion equation
295,637.21 : 407,979.74 = 168,312.80 : x - Step 2: Convert to fraction form
295,637.21/407,979.74 = 168,312.80/x - Step 3: Cross multiply
295,637.21x = 407,979.74 × 168,312.80 - Step 4: Simplify right side
295,637.21x = 68,668,213,823.40 - Step 5: Solve for x
x = 68,668,213,823.40/295,637.21 - Step 6: Final answer
x = 232,271.89
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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.