Finding the Fourth Proportional to 438,756.19, 658,134.28 and 106,332.19
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Solution
The fourth proportional to 438,756.19, 658,134.28 and 106,332.19 is: 159,498.28
Step by Step Solution
- Step 1: Write the proportion equation
438,756.19 : 658,134.28 = 106,332.19 : x - Step 2: Convert to fraction form
438,756.19/658,134.28 = 106,332.19/x - Step 3: Cross multiply
438,756.19x = 658,134.28 × 106,332.19 - Step 4: Simplify right side
438,756.19x = 69,980,857,794.05 - Step 5: Solve for x
x = 69,980,857,794.05/438,756.19 - Step 6: Final answer
x = 159,498.28
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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.