Finding the Fourth Proportional to 399,533.99, 551,347.84 and 218,246.72
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Solution
The fourth proportional to 399,533.99, 551,347.84 and 218,246.72 is: 301,175.53
Step by Step Solution
- Step 1: Write the proportion equation
399,533.99 : 551,347.84 = 218,246.72 : x - Step 2: Convert to fraction form
399,533.99/551,347.84 = 218,246.72/x - Step 3: Cross multiply
399,533.99x = 551,347.84 × 218,246.72 - Step 4: Simplify right side
399,533.99x = 120,329,858,491.84 - Step 5: Solve for x
x = 120,329,858,491.84/399,533.99 - Step 6: Final answer
x = 301,175.53
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.