Finding the Fourth Proportional to 140,582.70, 210,874.14 and 57,476.70
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Solution
The fourth proportional to 140,582.70, 210,874.14 and 57,476.70 is: 86,215.09
Step by Step Solution
- Step 1: Write the proportion equation
140,582.70 : 210,874.14 = 57,476.70 : x - Step 2: Convert to fraction form
140,582.70/210,874.14 = 57,476.70/x - Step 3: Cross multiply
140,582.70x = 210,874.14 × 57,476.70 - Step 4: Simplify right side
140,582.70x = 12,120,349,682.54 - Step 5: Solve for x
x = 12,120,349,682.54/140,582.70 - Step 6: Final answer
x = 86,215.09
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.