Finding the Fourth Proportional to 490,592.70, 735,889.05 and 153,659.70
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Solution
The fourth proportional to 490,592.70, 735,889.05 and 153,659.70 is: 230,489.55
Step by Step Solution
- Step 1: Write the proportion equation
490,592.70 : 735,889.05 = 153,659.70 : x - Step 2: Convert to fraction form
490,592.70/735,889.05 = 153,659.70/x - Step 3: Cross multiply
490,592.70x = 735,889.05 × 153,659.70 - Step 4: Simplify right side
490,592.70x = 113,076,490,656.29 - Step 5: Solve for x
x = 113,076,490,656.29/490,592.70 - Step 6: Final answer
x = 230,489.55
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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.