Finding the Fourth Proportional to 260,147.70, 390,221.55 and 242,651.70
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Solution
The fourth proportional to 260,147.70, 390,221.55 and 242,651.70 is: 363,977.55
Step by Step Solution
- Step 1: Write the proportion equation
260,147.70 : 390,221.55 = 242,651.70 : x - Step 2: Convert to fraction form
260,147.70/390,221.55 = 242,651.70/x - Step 3: Cross multiply
260,147.70x = 390,221.55 × 242,651.70 - Step 4: Simplify right side
260,147.70x = 94,687,922,484.14 - Step 5: Solve for x
x = 94,687,922,484.14/260,147.70 - Step 6: Final answer
x = 363,977.55
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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.