Finding the Fourth Proportional to 400,813.99, 553,123.84 and 217,052.87
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Solution
The fourth proportional to 400,813.99, 553,123.84 and 217,052.87 is: 299,533.25
Step by Step Solution
- Step 1: Write the proportion equation
400,813.99 : 553,123.84 = 217,052.87 : x - Step 2: Convert to fraction form
400,813.99/553,123.84 = 217,052.87/x - Step 3: Cross multiply
400,813.99x = 553,123.84 × 217,052.87 - Step 4: Simplify right side
400,813.99x = 120,057,118,703.13 - Step 5: Solve for x
x = 120,057,118,703.13/400,813.99 - Step 6: Final answer
x = 299,533.25
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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.