Finding the Fourth Proportional to 209,919.20, 314,788.80 and 97,587.68
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Solution
The fourth proportional to 209,919.20, 314,788.80 and 97,587.68 is: 146,339.68
Step by Step Solution
- Step 1: Write the proportion equation
209,919.20 : 314,788.80 = 97,587.68 : x - Step 2: Convert to fraction form
209,919.20/314,788.80 = 97,587.68/x - Step 3: Cross multiply
209,919.20x = 314,788.80 × 97,587.68 - Step 4: Simplify right side
209,919.20x = 30,719,508,681.98 - Step 5: Solve for x
x = 30,719,508,681.98/209,919.20 - Step 6: Final answer
x = 146,339.68
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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.