Finding the Fourth Proportional to 316,358.94, 436,575.35 and 173,118.99
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Solution
The fourth proportional to 316,358.94, 436,575.35 and 173,118.99 is: 238,904.21
Step by Step Solution
- Step 1: Write the proportion equation
316,358.94 : 436,575.35 = 173,118.99 : x - Step 2: Convert to fraction form
316,358.94/436,575.35 = 173,118.99/x - Step 3: Cross multiply
316,358.94x = 436,575.35 × 173,118.99 - Step 4: Simplify right side
316,358.94x = 75,579,484,083.69 - Step 5: Solve for x
x = 75,579,484,083.69/316,358.94 - Step 6: Final answer
x = 238,904.21
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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.