Finding the Fourth Proportional to 351,499.10, 526,893.58 and 138,416.54
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Solution
The fourth proportional to 351,499.10, 526,893.58 and 138,416.54 is: 207,484.99
Step by Step Solution
- Step 1: Write the proportion equation
351,499.10 : 526,893.58 = 138,416.54 : x - Step 2: Convert to fraction form
351,499.10/526,893.58 = 138,416.54/x - Step 3: Cross multiply
351,499.10x = 526,893.58 × 138,416.54 - Step 4: Simplify right side
351,499.10x = 72,930,786,291.81 - Step 5: Solve for x
x = 72,930,786,291.81/351,499.10 - Step 6: Final answer
x = 207,484.99
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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.