Finding the Fourth Proportional to 279,240.08, 418,881.18 and 87,090.26
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Solution
The fourth proportional to 279,240.08, 418,881.18 and 87,090.26 is: 130,641.96
Step by Step Solution
- Step 1: Write the proportion equation
279,240.08 : 418,881.18 = 87,090.26 : x - Step 2: Convert to fraction form
279,240.08/418,881.18 = 87,090.26/x - Step 3: Cross multiply
279,240.08x = 418,881.18 × 87,090.26 - Step 4: Simplify right side
279,240.08x = 36,480,470,875.31 - Step 5: Solve for x
x = 36,480,470,875.31/279,240.08 - Step 6: Final answer
x = 130,641.96
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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.