Finding the Fourth Proportional to 395,208.30, 545,398.08 and 240,106.80
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Solution
The fourth proportional to 395,208.30, 545,398.08 and 240,106.80 is: 331,353.84
Step by Step Solution
- Step 1: Write the proportion equation
395,208.30 : 545,398.08 = 240,106.80 : x - Step 2: Convert to fraction form
395,208.30/545,398.08 = 240,106.80/x - Step 3: Cross multiply
395,208.30x = 545,398.08 × 240,106.80 - Step 4: Simplify right side
395,208.30x = 130,953,787,714.94 - Step 5: Solve for x
x = 130,953,787,714.94/395,208.30 - Step 6: Final answer
x = 331,353.84
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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.