Finding the Fourth Proportional to 280,607.68, 387,237.07 and 153,282.36
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Solution
The fourth proportional to 280,607.68, 387,237.07 and 153,282.36 is: 211,528.82
Step by Step Solution
- Step 1: Write the proportion equation
280,607.68 : 387,237.07 = 153,282.36 : x - Step 2: Convert to fraction form
280,607.68/387,237.07 = 153,282.36/x - Step 3: Cross multiply
280,607.68x = 387,237.07 × 153,282.36 - Step 4: Simplify right side
280,607.68x = 59,356,611,969.09 - Step 5: Solve for x
x = 59,356,611,969.09/280,607.68 - Step 6: Final answer
x = 211,528.82
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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.