Finding the Fourth Proportional to 430,332.19, 645,572.09 and 130,843.06
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Solution
The fourth proportional to 430,332.19, 645,572.09 and 130,843.06 is: 196,287.03
Step by Step Solution
- Step 1: Write the proportion equation
430,332.19 : 645,572.09 = 130,843.06 : x - Step 2: Convert to fraction form
430,332.19/645,572.09 = 130,843.06/x - Step 3: Cross multiply
430,332.19x = 645,572.09 × 130,843.06 - Step 4: Simplify right side
430,332.19x = 84,468,626,419.37 - Step 5: Solve for x
x = 84,468,626,419.37/430,332.19 - Step 6: Final answer
x = 196,287.03
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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.