Finding the Fourth Proportional to 387,706.60, 581,587.68 and 103,395.70
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Solution
The fourth proportional to 387,706.60, 581,587.68 and 103,395.70 is: 155,100.96
Step by Step Solution
- Step 1: Write the proportion equation
387,706.60 : 581,587.68 = 103,395.70 : x - Step 2: Convert to fraction form
387,706.60/581,587.68 = 103,395.70/x - Step 3: Cross multiply
387,706.60x = 581,587.68 × 103,395.70 - Step 4: Simplify right side
387,706.60x = 60,133,665,284.98 - Step 5: Solve for x
x = 60,133,665,284.98/387,706.60 - Step 6: Final answer
x = 155,100.96
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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.