Finding the Fourth Proportional to 143,794.08, 215,358.48 and 138,811.68
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Solution
The fourth proportional to 143,794.08, 215,358.48 and 138,811.68 is: 207,896.41
Step by Step Solution
- Step 1: Write the proportion equation
143,794.08 : 215,358.48 = 138,811.68 : x - Step 2: Convert to fraction form
143,794.08/215,358.48 = 138,811.68/x - Step 3: Cross multiply
143,794.08x = 215,358.48 × 138,811.68 - Step 4: Simplify right side
143,794.08x = 29,894,272,411.05 - Step 5: Solve for x
x = 29,894,272,411.05/143,794.08 - Step 6: Final answer
x = 207,896.41
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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.