Finding the Fourth Proportional to 211,340.07, 316,862.42 and 78,203.00
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Solution
The fourth proportional to 211,340.07, 316,862.42 and 78,203.00 is: 117,249.85
Step by Step Solution
- Step 1: Write the proportion equation
211,340.07 : 316,862.42 = 78,203.00 : x - Step 2: Convert to fraction form
211,340.07/316,862.42 = 78,203.00/x - Step 3: Cross multiply
211,340.07x = 316,862.42 × 78,203.00 - Step 4: Simplify right side
211,340.07x = 24,779,592,232.40 - Step 5: Solve for x
x = 24,779,592,232.40/211,340.07 - Step 6: Final answer
x = 117,249.85
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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.