Finding the Fourth Proportional to 211,862.19, 317,751.35 and 105,134.79
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Solution
The fourth proportional to 211,862.19, 317,751.35 and 105,134.79 is: 157,681.37
Step by Step Solution
- Step 1: Write the proportion equation
211,862.19 : 317,751.35 = 105,134.79 : x - Step 2: Convert to fraction form
211,862.19/317,751.35 = 105,134.79/x - Step 3: Cross multiply
211,862.19x = 317,751.35 × 105,134.79 - Step 4: Simplify right side
211,862.19x = 33,406,720,928.79 - Step 5: Solve for x
x = 33,406,720,928.79/211,862.19 - Step 6: Final answer
x = 157,681.37
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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.