Finding the Fourth Proportional to 415,358.39, 623,028.65 and 115,830.99
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Solution
The fourth proportional to 415,358.39, 623,028.65 and 115,830.99 is: 173,743.99
Step by Step Solution
- Step 1: Write the proportion equation
415,358.39 : 623,028.65 = 115,830.99 : x - Step 2: Convert to fraction form
415,358.39/623,028.65 = 115,830.99/x - Step 3: Cross multiply
415,358.39x = 623,028.65 × 115,830.99 - Step 4: Simplify right side
415,358.39x = 72,166,024,748.71 - Step 5: Solve for x
x = 72,166,024,748.71/415,358.39 - Step 6: Final answer
x = 173,743.99
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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.