Finding the Fourth Proportional to 282,632.64, 423,555.20 and 212,430.08
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Solution
The fourth proportional to 282,632.64, 423,555.20 and 212,430.08 is: 318,349.17
Step by Step Solution
- Step 1: Write the proportion equation
282,632.64 : 423,555.20 = 212,430.08 : x - Step 2: Convert to fraction form
282,632.64/423,555.20 = 212,430.08/x - Step 3: Cross multiply
282,632.64x = 423,555.20 × 212,430.08 - Step 4: Simplify right side
282,632.64x = 89,975,865,020.42 - Step 5: Solve for x
x = 89,975,865,020.42/282,632.64 - Step 6: Final answer
x = 318,349.17
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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.