Finding the Fourth Proportional to 369,607.12, 509,961.41 and 216,563.09
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Solution
The fourth proportional to 369,607.12, 509,961.41 and 216,563.09 is: 298,800.57
Step by Step Solution
- Step 1: Write the proportion equation
369,607.12 : 509,961.41 = 216,563.09 : x - Step 2: Convert to fraction form
369,607.12/509,961.41 = 216,563.09/x - Step 3: Cross multiply
369,607.12x = 509,961.41 × 216,563.09 - Step 4: Simplify right side
369,607.12x = 110,438,817,822.20 - Step 5: Solve for x
x = 110,438,817,822.20/369,607.12 - Step 6: Final answer
x = 298,800.57
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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.