Finding the Fourth Proportional to 408,154.29, 612,276.08 and 138,477.14
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Solution
The fourth proportional to 408,154.29, 612,276.08 and 138,477.14 is: 207,730.86
Step by Step Solution
- Step 1: Write the proportion equation
408,154.29 : 612,276.08 = 138,477.14 : x - Step 2: Convert to fraction form
408,154.29/612,276.08 = 138,477.14/x - Step 3: Cross multiply
408,154.29x = 612,276.08 × 138,477.14 - Step 4: Simplify right side
408,154.29x = 84,786,240,448.81 - Step 5: Solve for x
x = 84,786,240,448.81/408,154.29 - Step 6: Final answer
x = 207,730.86
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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.