Finding the Fourth Proportional to 280,463.24, 387,037.74 and 153,137.93
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Solution
The fourth proportional to 280,463.24, 387,037.74 and 153,137.93 is: 211,329.50
Step by Step Solution
- Step 1: Write the proportion equation
280,463.24 : 387,037.74 = 153,137.93 : x - Step 2: Convert to fraction form
280,463.24/387,037.74 = 153,137.93/x - Step 3: Cross multiply
280,463.24x = 387,037.74 × 153,137.93 - Step 4: Simplify right side
280,463.24x = 59,270,156,783.13 - Step 5: Solve for x
x = 59,270,156,783.13/280,463.24 - Step 6: Final answer
x = 211,329.50
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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.