Finding the Fourth Proportional to 430,663.10, 645,518.84 and 177,804.18
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Solution
The fourth proportional to 430,663.10, 645,518.84 and 177,804.18 is: 266,509.83
Step by Step Solution
- Step 1: Write the proportion equation
430,663.10 : 645,518.84 = 177,804.18 : x - Step 2: Convert to fraction form
430,663.10/645,518.84 = 177,804.18/x - Step 3: Cross multiply
430,663.10x = 645,518.84 × 177,804.18 - Step 4: Simplify right side
430,663.10x = 114,775,947,131.73 - Step 5: Solve for x
x = 114,775,947,131.73/430,663.10 - Step 6: Final answer
x = 266,509.83
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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.