Finding the Fourth Proportional to 265,621.70, 398,432.55 and 97,141.70
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Solution
The fourth proportional to 265,621.70, 398,432.55 and 97,141.70 is: 145,712.55
Step by Step Solution
- Step 1: Write the proportion equation
265,621.70 : 398,432.55 = 97,141.70 : x - Step 2: Convert to fraction form
265,621.70/398,432.55 = 97,141.70/x - Step 3: Cross multiply
265,621.70x = 398,432.55 × 97,141.70 - Step 4: Simplify right side
265,621.70x = 38,704,415,242.34 - Step 5: Solve for x
x = 38,704,415,242.34/265,621.70 - Step 6: Final answer
x = 145,712.55
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1.5x scale
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.