Finding the Fourth Proportional to 265,615.70, 398,423.55 and 97,135.70
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Solution
The fourth proportional to 265,615.70, 398,423.55 and 97,135.70 is: 145,703.55
Step by Step Solution
- Step 1: Write the proportion equation
265,615.70 : 398,423.55 = 97,135.70 : x - Step 2: Convert to fraction form
265,615.70/398,423.55 = 97,135.70/x - Step 3: Cross multiply
265,615.70x = 398,423.55 × 97,135.70 - Step 4: Simplify right side
265,615.70x = 38,701,150,425.74 - Step 5: Solve for x
x = 38,701,150,425.74/265,615.70 - Step 6: Final answer
x = 145,703.55
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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.