Finding the Fourth Proportional to 387,725.74, 581,681.76 and 134,969.02
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Solution
The fourth proportional to 387,725.74, 581,681.76 and 134,969.02 is: 202,485.96
Step by Step Solution
- Step 1: Write the proportion equation
387,725.74 : 581,681.76 = 134,969.02 : x - Step 2: Convert to fraction form
387,725.74/581,681.76 = 134,969.02/x - Step 3: Cross multiply
387,725.74x = 581,681.76 × 134,969.02 - Step 4: Simplify right side
387,725.74x = 78,509,017,099.08 - Step 5: Solve for x
x = 78,509,017,099.08/387,725.74 - Step 6: Final answer
x = 202,485.96
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.