Finding the Fourth Proportional to 187,345.34, 258,567.18 and 139,266.62
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Solution
The fourth proportional to 187,345.34, 258,567.18 and 139,266.62 is: 192,210.69
Step by Step Solution
- Step 1: Write the proportion equation
187,345.34 : 258,567.18 = 139,266.62 : x - Step 2: Convert to fraction form
187,345.34/258,567.18 = 139,266.62/x - Step 3: Cross multiply
187,345.34x = 258,567.18 × 139,266.62 - Step 4: Simplify right side
187,345.34x = 36,009,777,201.53 - Step 5: Solve for x
x = 36,009,777,201.53/187,345.34 - Step 6: Final answer
x = 192,210.69
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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.