Finding the Fourth Proportional to 257,814.79, 355,849.81 and 176,176.09
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Solution
The fourth proportional to 257,814.79, 355,849.81 and 176,176.09 is: 243,167.70
Step by Step Solution
- Step 1: Write the proportion equation
257,814.79 : 355,849.81 = 176,176.09 : x - Step 2: Convert to fraction form
257,814.79/355,849.81 = 176,176.09/x - Step 3: Cross multiply
257,814.79x = 355,849.81 × 176,176.09 - Step 4: Simplify right side
257,814.79x = 62,692,228,157.41 - Step 5: Solve for x
x = 62,692,228,157.41/257,814.79 - Step 6: Final answer
x = 243,167.70
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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.