Finding the Fourth Proportional to 521,088.05, 781,090.16 and 201,459.45
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Solution
The fourth proportional to 521,088.05, 781,090.16 and 201,459.45 is: 301,979.66
Step by Step Solution
- Step 1: Write the proportion equation
521,088.05 : 781,090.16 = 201,459.45 : x - Step 2: Convert to fraction form
521,088.05/781,090.16 = 201,459.45/x - Step 3: Cross multiply
521,088.05x = 781,090.16 × 201,459.45 - Step 4: Simplify right side
521,088.05x = 157,357,989,121.26 - Step 5: Solve for x
x = 157,357,989,121.26/521,088.05 - Step 6: Final answer
x = 301,979.66
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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.