Finding the Fourth Proportional to 187,387.19, 258,719.06 and 110,930.88
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Solution
The fourth proportional to 187,387.19, 258,719.06 and 110,930.88 is: 153,158.46
Step by Step Solution
- Step 1: Write the proportion equation
187,387.19 : 258,719.06 = 110,930.88 : x - Step 2: Convert to fraction form
187,387.19/258,719.06 = 110,930.88/x - Step 3: Cross multiply
187,387.19x = 258,719.06 × 110,930.88 - Step 4: Simplify right side
187,387.19x = 28,699,932,998.57 - Step 5: Solve for x
x = 28,699,932,998.57/187,387.19 - Step 6: Final answer
x = 153,158.46
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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.