Finding the Fourth Proportional to 260,805.60, 391,208.40 and 201,683.70
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Solution
The fourth proportional to 260,805.60, 391,208.40 and 201,683.70 is: 302,525.55
Step by Step Solution
- Step 1: Write the proportion equation
260,805.60 : 391,208.40 = 201,683.70 : x - Step 2: Convert to fraction form
260,805.60/391,208.40 = 201,683.70/x - Step 3: Cross multiply
260,805.60x = 391,208.40 × 201,683.70 - Step 4: Simplify right side
260,805.60x = 78,900,357,583.08 - Step 5: Solve for x
x = 78,900,357,583.08/260,805.60 - Step 6: Final answer
x = 302,525.55
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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.