Finding the Fourth Proportional to 455,889.84, 683,929.80 and 140,331.12
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Solution
The fourth proportional to 455,889.84, 683,929.80 and 140,331.12 is: 210,525.94
Step by Step Solution
- Step 1: Write the proportion equation
455,889.84 : 683,929.80 = 140,331.12 : x - Step 2: Convert to fraction form
455,889.84/683,929.80 = 140,331.12/x - Step 3: Cross multiply
455,889.84x = 683,929.80 × 140,331.12 - Step 4: Simplify right side
455,889.84x = 95,976,634,835.38 - Step 5: Solve for x
x = 95,976,634,835.38/455,889.84 - Step 6: Final answer
x = 210,525.94
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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.