Finding the Fourth Proportional to 230,807.86, 318,567.99 and 135,345.31
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Solution
The fourth proportional to 230,807.86, 318,567.99 and 135,345.31 is: 186,807.69
Step by Step Solution
- Step 1: Write the proportion equation
230,807.86 : 318,567.99 = 135,345.31 : x - Step 2: Convert to fraction form
230,807.86/318,567.99 = 135,345.31/x - Step 3: Cross multiply
230,807.86x = 318,567.99 × 135,345.31 - Step 4: Simplify right side
230,807.86x = 43,116,684,104.38 - Step 5: Solve for x
x = 43,116,684,104.38/230,807.86 - Step 6: Final answer
x = 186,807.69
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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.