Finding the Fourth Proportional to 211,320.70, 291,652.46 and 130,774.19
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Solution
The fourth proportional to 211,320.70, 291,652.46 and 130,774.19 is: 180,486.88
Step by Step Solution
- Step 1: Write the proportion equation
211,320.70 : 291,652.46 = 130,774.19 : x - Step 2: Convert to fraction form
211,320.70/291,652.46 = 130,774.19/x - Step 3: Cross multiply
211,320.70x = 291,652.46 × 130,774.19 - Step 4: Simplify right side
211,320.70x = 38,140,614,218.01 - Step 5: Solve for x
x = 38,140,614,218.01/211,320.70 - Step 6: Final answer
x = 180,486.88
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.