Finding the Fourth Proportional to 310,787.90, 466,135.71 and 86,124.92
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Solution
The fourth proportional to 310,787.90, 466,135.71 and 86,124.92 is: 129,174.59
Step by Step Solution
- Step 1: Write the proportion equation
310,787.90 : 466,135.71 = 86,124.92 : x - Step 2: Convert to fraction form
310,787.90/466,135.71 = 86,124.92/x - Step 3: Cross multiply
310,787.90x = 466,135.71 × 86,124.92 - Step 4: Simplify right side
310,787.90x = 40,145,898,402.21 - Step 5: Solve for x
x = 40,145,898,402.21/310,787.90 - Step 6: Final answer
x = 129,174.59
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.