Finding the Fourth Proportional to 187,215.14, 258,326.70 and 106,644.23
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Solution
The fourth proportional to 187,215.14, 258,326.70 and 106,644.23 is: 147,151.84
Step by Step Solution
- Step 1: Write the proportion equation
187,215.14 : 258,326.70 = 106,644.23 : x - Step 2: Convert to fraction form
187,215.14/258,326.70 = 106,644.23/x - Step 3: Cross multiply
187,215.14x = 258,326.70 × 106,644.23 - Step 4: Simplify right side
187,215.14x = 27,549,050,718.31 - Step 5: Solve for x
x = 27,549,050,718.31/187,215.14 - Step 6: Final answer
x = 147,151.84
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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.