Finding the Fourth Proportional to 304,289.70, 456,434.55 and 135,809.70
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Solution
The fourth proportional to 304,289.70, 456,434.55 and 135,809.70 is: 203,714.55
Step by Step Solution
- Step 1: Write the proportion equation
304,289.70 : 456,434.55 = 135,809.70 : x - Step 2: Convert to fraction form
304,289.70/456,434.55 = 135,809.70/x - Step 3: Cross multiply
304,289.70x = 456,434.55 × 135,809.70 - Step 4: Simplify right side
304,289.70x = 61,988,239,305.14 - Step 5: Solve for x
x = 61,988,239,305.14/304,289.70 - Step 6: Final answer
x = 203,714.55
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1.5x scale
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.