Finding the Fourth Proportional to 405,670.14, 608,349.51 and 139,381.02
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Solution
The fourth proportional to 405,670.14, 608,349.51 and 139,381.02 is: 209,018.03
Step by Step Solution
- Step 1: Write the proportion equation
405,670.14 : 608,349.51 = 139,381.02 : x - Step 2: Convert to fraction form
405,670.14/608,349.51 = 139,381.02/x - Step 3: Cross multiply
405,670.14x = 608,349.51 × 139,381.02 - Step 4: Simplify right side
405,670.14x = 84,792,375,220.30 - Step 5: Solve for x
x = 84,792,375,220.30/405,670.14 - Step 6: Final answer
x = 209,018.03
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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.