Finding the Fourth Proportional to 230,029.56, 317,419.02 and 129,421.08
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Solution
The fourth proportional to 230,029.56, 317,419.02 and 129,421.08 is: 178,588.84
Step by Step Solution
- Step 1: Write the proportion equation
230,029.56 : 317,419.02 = 129,421.08 : x - Step 2: Convert to fraction form
230,029.56/317,419.02 = 129,421.08/x - Step 3: Cross multiply
230,029.56x = 317,419.02 × 129,421.08 - Step 4: Simplify right side
230,029.56x = 41,080,712,380.94 - Step 5: Solve for x
x = 41,080,712,380.94/230,029.56 - Step 6: Final answer
x = 178,588.84
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1.5x scale
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.