Finding the Fourth Proportional to 231,345.60, 319,257.79 and 134,572.68
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Solution
The fourth proportional to 231,345.60, 319,257.79 and 134,572.68 is: 185,710.79
Step by Step Solution
- Step 1: Write the proportion equation
231,345.60 : 319,257.79 = 134,572.68 : x - Step 2: Convert to fraction form
231,345.60/319,257.79 = 134,572.68/x - Step 3: Cross multiply
231,345.60x = 319,257.79 × 134,572.68 - Step 4: Simplify right side
231,345.60x = 42,963,374,310.24 - Step 5: Solve for x
x = 42,963,374,310.24/231,345.60 - Step 6: Final answer
x = 185,710.79
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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.