Finding the Fourth Proportional to 284,484.16, 392,586.88 and 157,159.80
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Solution
The fourth proportional to 284,484.16, 392,586.88 and 157,159.80 is: 216,879.83
Step by Step Solution
- Step 1: Write the proportion equation
284,484.16 : 392,586.88 = 157,159.80 : x - Step 2: Convert to fraction form
284,484.16/392,586.88 = 157,159.80/x - Step 3: Cross multiply
284,484.16x = 392,586.88 × 157,159.80 - Step 4: Simplify right side
284,484.16x = 61,698,875,543.42 - Step 5: Solve for x
x = 61,698,875,543.42/284,484.16 - Step 6: Final answer
x = 216,879.83
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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.