Finding the Fourth Proportional to 236,479.20, 354,718.80 and 147,905.70
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Solution
The fourth proportional to 236,479.20, 354,718.80 and 147,905.70 is: 221,858.55
Step by Step Solution
- Step 1: Write the proportion equation
236,479.20 : 354,718.80 = 147,905.70 : x - Step 2: Convert to fraction form
236,479.20/354,718.80 = 147,905.70/x - Step 3: Cross multiply
236,479.20x = 354,718.80 × 147,905.70 - Step 4: Simplify right side
236,479.20x = 52,464,932,417.16 - Step 5: Solve for x
x = 52,464,932,417.16/236,479.20 - Step 6: Final answer
x = 221,858.55
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1.5x scale
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.