Finding the Fourth Proportional to 388,924.88, 536,432.81 and 297,251.28
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Solution
The fourth proportional to 388,924.88, 536,432.81 and 297,251.28 is: 409,990.07
Step by Step Solution
- Step 1: Write the proportion equation
388,924.88 : 536,432.81 = 297,251.28 : x - Step 2: Convert to fraction form
388,924.88/536,432.81 = 297,251.28/x - Step 3: Cross multiply
388,924.88x = 536,432.81 × 297,251.28 - Step 4: Simplify right side
388,924.88x = 159,455,337,920.24 - Step 5: Solve for x
x = 159,455,337,920.24/388,924.88 - Step 6: Final answer
x = 409,990.07
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.