Finding the Fourth Proportional to 315,120.32, 435,078.99 and 242,394.07
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Solution
The fourth proportional to 315,120.32, 435,078.99 and 242,394.07 is: 334,667.62
Step by Step Solution
- Step 1: Write the proportion equation
315,120.32 : 435,078.99 = 242,394.07 : x - Step 2: Convert to fraction form
315,120.32/435,078.99 = 242,394.07/x - Step 3: Cross multiply
315,120.32x = 435,078.99 × 242,394.07 - Step 4: Simplify right side
315,120.32x = 105,460,567,157.59 - Step 5: Solve for x
x = 105,460,567,157.59/315,120.32 - Step 6: Final answer
x = 334,667.62
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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.