Finding the Fourth Proportional to 307,988.80, 425,023.68 and 173,852.80
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Solution
The fourth proportional to 307,988.80, 425,023.68 and 173,852.80 is: 239,916.38
Step by Step Solution
- Step 1: Write the proportion equation
307,988.80 : 425,023.68 = 173,852.80 : x - Step 2: Convert to fraction form
307,988.80/425,023.68 = 173,852.80/x - Step 3: Cross multiply
307,988.80x = 425,023.68 × 173,852.80 - Step 4: Simplify right side
307,988.80x = 73,891,556,834.30 - Step 5: Solve for x
x = 73,891,556,834.30/307,988.80 - Step 6: Final answer
x = 239,916.38
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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.