Finding the Fourth Proportional to 280,701.68, 387,368.80 and 153,374.54
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Solution
The fourth proportional to 280,701.68, 387,368.80 and 153,374.54 is: 211,657.12
Step by Step Solution
- Step 1: Write the proportion equation
280,701.68 : 387,368.80 = 153,374.54 : x - Step 2: Convert to fraction form
280,701.68/387,368.80 = 153,374.54/x - Step 3: Cross multiply
280,701.68x = 387,368.80 × 153,374.54 - Step 4: Simplify right side
280,701.68x = 59,412,509,190.07 - Step 5: Solve for x
x = 59,412,509,190.07/280,701.68 - Step 6: Final answer
x = 211,657.12
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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.