Finding the Fourth Proportional to 238,319.71, 328,743.93 and 142,771.06
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Solution
The fourth proportional to 238,319.71, 328,743.93 and 142,771.06 is: 196,941.83
Step by Step Solution
- Step 1: Write the proportion equation
238,319.71 : 328,743.93 = 142,771.06 : x - Step 2: Convert to fraction form
238,319.71/328,743.93 = 142,771.06/x - Step 3: Cross multiply
238,319.71x = 328,743.93 × 142,771.06 - Step 4: Simplify right side
238,319.71x = 46,935,119,354.67 - Step 5: Solve for x
x = 46,935,119,354.67/238,319.71 - Step 6: Final answer
x = 196,941.83
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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.