Finding the Fourth Proportional to 420,793.32, 631,272.30 and 154,555.84
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Solution
The fourth proportional to 420,793.32, 631,272.30 and 154,555.84 is: 231,864.00
Step by Step Solution
- Step 1: Write the proportion equation
420,793.32 : 631,272.30 = 154,555.84 : x - Step 2: Convert to fraction form
420,793.32/631,272.30 = 154,555.84/x - Step 3: Cross multiply
420,793.32x = 631,272.30 × 154,555.84 - Step 4: Simplify right side
420,793.32x = 97,566,820,595.23 - Step 5: Solve for x
x = 97,566,820,595.23/420,793.32 - Step 6: Final answer
x = 231,864.00
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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.