Finding the Fourth Proportional to 310,005.13, 427,792.50 and 172,192.99
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Solution
The fourth proportional to 310,005.13, 427,792.50 and 172,192.99 is: 237,618.23
Step by Step Solution
- Step 1: Write the proportion equation
310,005.13 : 427,792.50 = 172,192.99 : x - Step 2: Convert to fraction form
310,005.13/427,792.50 = 172,192.99/x - Step 3: Cross multiply
310,005.13x = 427,792.50 × 172,192.99 - Step 4: Simplify right side
310,005.13x = 73,662,869,674.58 - Step 5: Solve for x
x = 73,662,869,674.58/310,005.13 - Step 6: Final answer
x = 237,618.23
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1.5x scale
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.