Finding the Fourth Proportional to 358,924.80, 495,313.92 and 197,781.12
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Solution
The fourth proportional to 358,924.80, 495,313.92 and 197,781.12 is: 272,936.68
Step by Step Solution
- Step 1: Write the proportion equation
358,924.80 : 495,313.92 = 197,781.12 : x - Step 2: Convert to fraction form
358,924.80/495,313.92 = 197,781.12/x - Step 3: Cross multiply
358,924.80x = 495,313.92 × 197,781.12 - Step 4: Simplify right side
358,924.80x = 97,963,741,849.19 - Step 5: Solve for x
x = 97,963,741,849.19/358,924.80 - Step 6: Final answer
x = 272,936.68
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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.