Finding the Fourth Proportional to 185,498.36, 255,988.18 and 100,615.42
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Solution
The fourth proportional to 185,498.36, 255,988.18 and 100,615.42 is: 138,849.52
Step by Step Solution
- Step 1: Write the proportion equation
185,498.36 : 255,988.18 = 100,615.42 : x - Step 2: Convert to fraction form
185,498.36/255,988.18 = 100,615.42/x - Step 3: Cross multiply
185,498.36x = 255,988.18 × 100,615.42 - Step 4: Simplify right side
185,498.36x = 25,756,358,245.74 - Step 5: Solve for x
x = 25,756,358,245.74/185,498.36 - Step 6: Final answer
x = 138,849.52
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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.