Finding the Fourth Proportional to 286,753.80, 430,130.70 and 216,769.80
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Solution
The fourth proportional to 286,753.80, 430,130.70 and 216,769.80 is: 325,154.70
Step by Step Solution
- Step 1: Write the proportion equation
286,753.80 : 430,130.70 = 216,769.80 : x - Step 2: Convert to fraction form
286,753.80/430,130.70 = 216,769.80/x - Step 3: Cross multiply
286,753.80x = 430,130.70 × 216,769.80 - Step 4: Simplify right side
286,753.80x = 93,239,345,812.86 - Step 5: Solve for x
x = 93,239,345,812.86/286,753.80 - Step 6: Final answer
x = 325,154.70
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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.