Finding the Fourth Proportional to 211,327.53, 291,661.89 and 130,780.99
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Solution
The fourth proportional to 211,327.53, 291,661.89 and 130,780.99 is: 180,496.27
Step by Step Solution
- Step 1: Write the proportion equation
211,327.53 : 291,661.89 = 130,780.99 : x - Step 2: Convert to fraction form
211,327.53/291,661.89 = 130,780.99/x - Step 3: Cross multiply
211,327.53x = 291,661.89 × 130,780.99 - Step 4: Simplify right side
211,327.53x = 38,143,830,719.47 - Step 5: Solve for x
x = 38,143,830,719.47/211,327.53 - Step 6: Final answer
x = 180,496.27
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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.