Finding the Fourth Proportional to 309,214.32, 426,708.32 and 173,253.99
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Solution
The fourth proportional to 309,214.32, 426,708.32 and 173,253.99 is: 239,086.34
Step by Step Solution
- Step 1: Write the proportion equation
309,214.32 : 426,708.32 = 173,253.99 : x - Step 2: Convert to fraction form
309,214.32/426,708.32 = 173,253.99/x - Step 3: Cross multiply
309,214.32x = 426,708.32 × 173,253.99 - Step 4: Simplify right side
309,214.32x = 73,928,919,740.08 - Step 5: Solve for x
x = 73,928,919,740.08/309,214.32 - Step 6: Final answer
x = 239,086.34
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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.