Finding the Fourth Proportional to 316,532.20, 473,876.70 and 307,316.20
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Solution
The fourth proportional to 316,532.20, 473,876.70 and 307,316.20 is: 460,079.53
Step by Step Solution
- Step 1: Write the proportion equation
316,532.20 : 473,876.70 = 307,316.20 : x - Step 2: Convert to fraction form
316,532.20/473,876.70 = 307,316.20/x - Step 3: Cross multiply
316,532.20x = 473,876.70 × 307,316.20 - Step 4: Simplify right side
316,532.20x = 145,629,986,712.54 - Step 5: Solve for x
x = 145,629,986,712.54/316,532.20 - Step 6: Final answer
x = 460,079.53
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1.5x scale
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.