Finding the Fourth Proportional to 340,262.64, 469,554.84 and 189,373.68
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Solution
The fourth proportional to 340,262.64, 469,554.84 and 189,373.68 is: 261,331.45
Step by Step Solution
- Step 1: Write the proportion equation
340,262.64 : 469,554.84 = 189,373.68 : x - Step 2: Convert to fraction form
340,262.64/469,554.84 = 189,373.68/x - Step 3: Cross multiply
340,262.64x = 469,554.84 × 189,373.68 - Step 4: Simplify right side
340,262.64x = 88,921,328,012.61 - Step 5: Solve for x
x = 88,921,328,012.61/340,262.64 - Step 6: Final answer
x = 261,331.45
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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.