Finding the Fourth Proportional to 307,398.71, 424,209.38 and 171,432.81
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Solution
The fourth proportional to 307,398.71, 424,209.38 and 171,432.81 is: 236,576.80
Step by Step Solution
- Step 1: Write the proportion equation
307,398.71 : 424,209.38 = 171,432.81 : x - Step 2: Convert to fraction form
307,398.71/424,209.38 = 171,432.81/x - Step 3: Cross multiply
307,398.71x = 424,209.38 × 171,432.81 - Step 4: Simplify right side
307,398.71x = 72,723,405,184.59 - Step 5: Solve for x
x = 72,723,405,184.59/307,398.71 - Step 6: Final answer
x = 236,576.80
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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.