Finding the Fourth Proportional to 458,242.14, 687,145.05 and 188,328.09
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Solution
The fourth proportional to 458,242.14, 687,145.05 and 188,328.09 is: 282,402.48
Step by Step Solution
- Step 1: Write the proportion equation
458,242.14 : 687,145.05 = 188,328.09 : x - Step 2: Convert to fraction form
458,242.14/687,145.05 = 188,328.09/x - Step 3: Cross multiply
458,242.14x = 687,145.05 × 188,328.09 - Step 4: Simplify right side
458,242.14x = 129,408,714,819.46 - Step 5: Solve for x
x = 129,408,714,819.46/458,242.14 - Step 6: Final answer
x = 282,402.48
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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.