Finding the Fourth Proportional to 478,136.82, 716,997.87 and 162,508.98
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Solution
The fourth proportional to 478,136.82, 716,997.87 and 162,508.98 is: 243,692.99
Step by Step Solution
- Step 1: Write the proportion equation
478,136.82 : 716,997.87 = 162,508.98 : x - Step 2: Convert to fraction form
478,136.82/716,997.87 = 162,508.98/x - Step 3: Cross multiply
478,136.82x = 716,997.87 × 162,508.98 - Step 4: Simplify right side
478,136.82x = 116,518,592,515.87 - Step 5: Solve for x
x = 116,518,592,515.87/478,136.82 - Step 6: Final answer
x = 243,692.99
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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.