Finding the Fourth Proportional to 316,534.87, 436,747.65 and 187,408.92
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Solution
The fourth proportional to 316,534.87, 436,747.65 and 187,408.92 is: 258,582.59
Step by Step Solution
- Step 1: Write the proportion equation
316,534.87 : 436,747.65 = 187,408.92 : x - Step 2: Convert to fraction form
316,534.87/436,747.65 = 187,408.92/x - Step 3: Cross multiply
316,534.87x = 436,747.65 × 187,408.92 - Step 4: Simplify right side
316,534.87x = 81,850,406,334.06 - Step 5: Solve for x
x = 81,850,406,334.06/316,534.87 - Step 6: Final answer
x = 258,582.59
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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.