Finding the Fourth Proportional to 453,947.70, 680,921.55 and 121,523.70
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Solution
The fourth proportional to 453,947.70, 680,921.55 and 121,523.70 is: 182,285.55
Step by Step Solution
- Step 1: Write the proportion equation
453,947.70 : 680,921.55 = 121,523.70 : x - Step 2: Convert to fraction form
453,947.70/680,921.55 = 121,523.70/x - Step 3: Cross multiply
453,947.70x = 680,921.55 × 121,523.70 - Step 4: Simplify right side
453,947.70x = 82,748,106,165.74 - Step 5: Solve for x
x = 82,748,106,165.74/453,947.70 - Step 6: Final answer
x = 182,285.55
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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.