Finding the Fourth Proportional to 251,698.61, 347,265.90 and 142,784.99
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Solution
The fourth proportional to 251,698.61, 347,265.90 and 142,784.99 is: 196,998.93
Step by Step Solution
- Step 1: Write the proportion equation
251,698.61 : 347,265.90 = 142,784.99 : x - Step 2: Convert to fraction form
251,698.61/347,265.90 = 142,784.99/x - Step 3: Cross multiply
251,698.61x = 347,265.90 × 142,784.99 - Step 4: Simplify right side
251,698.61x = 49,584,358,058.84 - Step 5: Solve for x
x = 49,584,358,058.84/251,698.61 - Step 6: Final answer
x = 196,998.93
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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.