Finding the Fourth Proportional to 458,228.64, 687,350.76 and 158,718.09
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Solution
The fourth proportional to 458,228.64, 687,350.76 and 158,718.09 is: 238,079.84
Step by Step Solution
- Step 1: Write the proportion equation
458,228.64 : 687,350.76 = 158,718.09 : x - Step 2: Convert to fraction form
458,228.64/687,350.76 = 158,718.09/x - Step 3: Cross multiply
458,228.64x = 687,350.76 × 158,718.09 - Step 4: Simplify right side
458,228.64x = 109,094,999,787.25 - Step 5: Solve for x
x = 109,094,999,787.25/458,228.64 - Step 6: Final answer
x = 238,079.84
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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.