Finding the Fourth Proportional to 187,653.74, 258,897.86 and 107,023.28
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Solution
The fourth proportional to 187,653.74, 258,897.86 and 107,023.28 is: 147,655.45
Step by Step Solution
- Step 1: Write the proportion equation
187,653.74 : 258,897.86 = 107,023.28 : x - Step 2: Convert to fraction form
187,653.74/258,897.86 = 107,023.28/x - Step 3: Cross multiply
187,653.74x = 258,897.86 × 107,023.28 - Step 4: Simplify right side
187,653.74x = 27,708,098,162.18 - Step 5: Solve for x
x = 27,708,098,162.18/187,653.74 - Step 6: Final answer
x = 147,655.45
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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.