Finding the Fourth Proportional to 411,316.80, 616,975.20 and 201,364.80
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Solution
The fourth proportional to 411,316.80, 616,975.20 and 201,364.80 is: 302,047.20
Step by Step Solution
- Step 1: Write the proportion equation
411,316.80 : 616,975.20 = 201,364.80 : x - Step 2: Convert to fraction form
411,316.80/616,975.20 = 201,364.80/x - Step 3: Cross multiply
411,316.80x = 616,975.20 × 201,364.80 - Step 4: Simplify right side
411,316.80x = 124,237,087,752.96 - Step 5: Solve for x
x = 124,237,087,752.96/411,316.80 - Step 6: Final answer
x = 302,047.20
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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.