Finding the Fourth Proportional to 245,109.82, 338,199.08 and 143,088.99
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Solution
The fourth proportional to 245,109.82, 338,199.08 and 143,088.99 is: 197,432.17
Step by Step Solution
- Step 1: Write the proportion equation
245,109.82 : 338,199.08 = 143,088.99 : x - Step 2: Convert to fraction form
245,109.82/338,199.08 = 143,088.99/x - Step 3: Cross multiply
245,109.82x = 338,199.08 × 143,088.99 - Step 4: Simplify right side
245,109.82x = 48,392,564,776.13 - Step 5: Solve for x
x = 48,392,564,776.13/245,109.82 - Step 6: Final answer
x = 197,432.17
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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.