Finding the Fourth Proportional to 458,900.07, 633,278.29 and 257,691.75
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Solution
The fourth proportional to 458,900.07, 633,278.29 and 257,691.75 is: 355,612.48
Step by Step Solution
- Step 1: Write the proportion equation
458,900.07 : 633,278.29 = 257,691.75 : x - Step 2: Convert to fraction form
458,900.07/633,278.29 = 257,691.75/x - Step 3: Cross multiply
458,900.07x = 633,278.29 × 257,691.75 - Step 4: Simplify right side
458,900.07x = 163,190,590,787.11 - Step 5: Solve for x
x = 163,190,590,787.11/458,900.07 - Step 6: Final answer
x = 355,612.48
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1.5x scale
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.