Finding the Fourth Proportional to 429,758.79, 644,329.41 and 201,925.94
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Solution
The fourth proportional to 429,758.79, 644,329.41 and 201,925.94 is: 302,743.82
Step by Step Solution
- Step 1: Write the proportion equation
429,758.79 : 644,329.41 = 201,925.94 : x - Step 2: Convert to fraction form
429,758.79/644,329.41 = 201,925.94/x - Step 3: Cross multiply
429,758.79x = 644,329.41 × 201,925.94 - Step 4: Simplify right side
429,758.79x = 130,106,818,562.25 - Step 5: Solve for x
x = 130,106,818,562.25/429,758.79 - Step 6: Final answer
x = 302,743.82
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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.