Finding the Fourth Proportional to 245,930.77, 339,385.62 and 138,502.63
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Solution
The fourth proportional to 245,930.77, 339,385.62 and 138,502.63 is: 191,134.28
Step by Step Solution
- Step 1: Write the proportion equation
245,930.77 : 339,385.62 = 138,502.63 : x - Step 2: Convert to fraction form
245,930.77/339,385.62 = 138,502.63/x - Step 3: Cross multiply
245,930.77x = 339,385.62 × 138,502.63 - Step 4: Simplify right side
245,930.77x = 47,005,800,954.18 - Step 5: Solve for x
x = 47,005,800,954.18/245,930.77 - Step 6: Final answer
x = 191,134.28
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.