Finding the Fourth Proportional to 318,246.78, 477,334.50 and 81,595.02
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Solution
The fourth proportional to 318,246.78, 477,334.50 and 81,595.02 is: 122,383.38
Step by Step Solution
- Step 1: Write the proportion equation
318,246.78 : 477,334.50 = 81,595.02 : x - Step 2: Convert to fraction form
318,246.78/477,334.50 = 81,595.02/x - Step 3: Cross multiply
318,246.78x = 477,334.50 × 81,595.02 - Step 4: Simplify right side
318,246.78x = 38,948,118,074.19 - Step 5: Solve for x
x = 38,948,118,074.19/318,246.78 - Step 6: Final answer
x = 122,383.38
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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.