Finding the Fourth Proportional to 402,393.12, 555,370.24 and 232,725.12
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Solution
The fourth proportional to 402,393.12, 555,370.24 and 232,725.12 is: 321,199.84
Step by Step Solution
- Step 1: Write the proportion equation
402,393.12 : 555,370.24 = 232,725.12 : x - Step 2: Convert to fraction form
402,393.12/555,370.24 = 232,725.12/x - Step 3: Cross multiply
402,393.12x = 555,370.24 × 232,725.12 - Step 4: Simplify right side
402,393.12x = 129,248,605,748.43 - Step 5: Solve for x
x = 129,248,605,748.43/402,393.12 - Step 6: Final answer
x = 321,199.84
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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.