Finding the Fourth Proportional to 316,257.41, 436,426.87 and 187,202.54
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Solution
The fourth proportional to 316,257.41, 436,426.87 and 187,202.54 is: 258,334.55
Step by Step Solution
- Step 1: Write the proportion equation
316,257.41 : 436,426.87 = 187,202.54 : x - Step 2: Convert to fraction form
316,257.41/436,426.87 = 187,202.54/x - Step 3: Cross multiply
316,257.41x = 436,426.87 × 187,202.54 - Step 4: Simplify right side
316,257.41x = 81,700,215,470.10 - Step 5: Solve for x
x = 81,700,215,470.10/316,257.41 - Step 6: Final answer
x = 258,334.55
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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.