Finding the Fourth Proportional to 279,239.96, 418,881.00 and 87,090.14
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Solution
The fourth proportional to 279,239.96, 418,881.00 and 87,090.14 is: 130,641.77
Step by Step Solution
- Step 1: Write the proportion equation
279,239.96 : 418,881.00 = 87,090.14 : x - Step 2: Convert to fraction form
279,239.96/418,881.00 = 87,090.14/x - Step 3: Cross multiply
279,239.96x = 418,881.00 × 87,090.14 - Step 4: Simplify right side
279,239.96x = 36,480,402,403.48 - Step 5: Solve for x
x = 36,480,402,403.48/279,239.96 - Step 6: Final answer
x = 130,641.77
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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.