Finding the Fourth Proportional to 305,639.06, 458,558.20 and 153,757.76
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Solution
The fourth proportional to 305,639.06, 458,558.20 and 153,757.76 is: 230,686.75
Step by Step Solution
- Step 1: Write the proportion equation
305,639.06 : 458,558.20 = 153,757.76 : x - Step 2: Convert to fraction form
305,639.06/458,558.20 = 153,757.76/x - Step 3: Cross multiply
305,639.06x = 458,558.20 × 153,757.76 - Step 4: Simplify right side
305,639.06x = 70,506,881,661.63 - Step 5: Solve for x
x = 70,506,881,661.63/305,639.06 - Step 6: Final answer
x = 230,686.75
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.