Finding the Fourth Proportional to 455,564.70, 683,347.05 and 206,246.70
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Solution
The fourth proportional to 455,564.70, 683,347.05 and 206,246.70 is: 309,370.05
Step by Step Solution
- Step 1: Write the proportion equation
455,564.70 : 683,347.05 = 206,246.70 : x - Step 2: Convert to fraction form
455,564.70/683,347.05 = 206,246.70/x - Step 3: Cross multiply
455,564.70x = 683,347.05 × 206,246.70 - Step 4: Simplify right side
455,564.70x = 140,938,074,017.24 - Step 5: Solve for x
x = 140,938,074,017.24/455,564.70 - Step 6: Final answer
x = 309,370.05
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1.5x scale
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.