Finding the Fourth Proportional to 307,934.76, 424,925.73 and 171,958.08
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Solution
The fourth proportional to 307,934.76, 424,925.73 and 171,958.08 is: 237,288.61
Step by Step Solution
- Step 1: Write the proportion equation
307,934.76 : 424,925.73 = 171,958.08 : x - Step 2: Convert to fraction form
307,934.76/424,925.73 = 171,958.08/x - Step 3: Cross multiply
307,934.76x = 424,925.73 × 171,958.08 - Step 4: Simplify right side
307,934.76x = 73,069,412,673.40 - Step 5: Solve for x
x = 73,069,412,673.40/307,934.76 - Step 6: Final answer
x = 237,288.61
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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.