Finding the Fourth Proportional to 312,312.84, 430,989.75 and 169,071.84
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Solution
The fourth proportional to 312,312.84, 430,989.75 and 169,071.84 is: 233,318.07
Step by Step Solution
- Step 1: Write the proportion equation
312,312.84 : 430,989.75 = 169,071.84 : x - Step 2: Convert to fraction form
312,312.84/430,989.75 = 169,071.84/x - Step 3: Cross multiply
312,312.84x = 430,989.75 × 169,071.84 - Step 4: Simplify right side
312,312.84x = 72,868,230,053.64 - Step 5: Solve for x
x = 72,868,230,053.64/312,312.84 - Step 6: Final answer
x = 233,318.07
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1.5x scale
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.