Finding the Fourth Proportional to 339,011.51, 508,320.36 and 128,534.63
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Solution
The fourth proportional to 339,011.51, 508,320.36 and 128,534.63 is: 192,727.28
Step by Step Solution
- Step 1: Write the proportion equation
339,011.51 : 508,320.36 = 128,534.63 : x - Step 2: Convert to fraction form
339,011.51/508,320.36 = 128,534.63/x - Step 3: Cross multiply
339,011.51x = 508,320.36 × 128,534.63 - Step 4: Simplify right side
339,011.51x = 65,336,766,852.47 - Step 5: Solve for x
x = 65,336,766,852.47/339,011.51 - Step 6: Final answer
x = 192,727.28
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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.