Finding the Fourth Proportional to 266,731.38, 368,448.75 and 213,397.74
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Solution
The fourth proportional to 266,731.38, 368,448.75 and 213,397.74 is: 294,776.45
Step by Step Solution
- Step 1: Write the proportion equation
266,731.38 : 368,448.75 = 213,397.74 : x - Step 2: Convert to fraction form
266,731.38/368,448.75 = 213,397.74/x - Step 3: Cross multiply
266,731.38x = 368,448.75 × 213,397.74 - Step 4: Simplify right side
266,731.38x = 78,626,130,555.83 - Step 5: Solve for x
x = 78,626,130,555.83/266,731.38 - Step 6: Final answer
x = 294,776.45
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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.