Finding the Fourth Proportional to 455,742.05, 683,696.07 and 156,252.87
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Solution
The fourth proportional to 455,742.05, 683,696.07 and 156,252.87 is: 234,407.76
Step by Step Solution
- Step 1: Write the proportion equation
455,742.05 : 683,696.07 = 156,252.87 : x - Step 2: Convert to fraction form
455,742.05/683,696.07 = 156,252.87/x - Step 3: Cross multiply
455,742.05x = 683,696.07 × 156,252.87 - Step 4: Simplify right side
455,742.05x = 106,829,473,145.22 - Step 5: Solve for x
x = 106,829,473,145.22/455,742.05 - Step 6: Final answer
x = 234,407.76
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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.