Finding the Fourth Proportional to 312,312.02, 430,990.74 and 169,072.06
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Solution
The fourth proportional to 312,312.02, 430,990.74 and 169,072.06 is: 233,319.53
Step by Step Solution
- Step 1: Write the proportion equation
312,312.02 : 430,990.74 = 169,072.06 : x - Step 2: Convert to fraction form
312,312.02/430,990.74 = 169,072.06/x - Step 3: Cross multiply
312,312.02x = 430,990.74 × 169,072.06 - Step 4: Simplify right side
312,312.02x = 72,868,492,252.72 - Step 5: Solve for x
x = 72,868,492,252.72/312,312.02 - Step 6: Final answer
x = 233,319.53
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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.