Finding the Fourth Proportional to 458,170.92, 686,980.26 and 205,405.70
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Solution
The fourth proportional to 458,170.92, 686,980.26 and 205,405.70 is: 307,984.75
Step by Step Solution
- Step 1: Write the proportion equation
458,170.92 : 686,980.26 = 205,405.70 : x - Step 2: Convert to fraction form
458,170.92/686,980.26 = 205,405.70/x - Step 3: Cross multiply
458,170.92x = 686,980.26 × 205,405.70 - Step 4: Simplify right side
458,170.92x = 141,109,657,756.58 - Step 5: Solve for x
x = 141,109,657,756.58/458,170.92 - Step 6: Final answer
x = 307,984.75
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.