Finding the Fourth Proportional to 418,980.87, 578,206.62 and 237,700.44
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Solution
The fourth proportional to 418,980.87, 578,206.62 and 237,700.44 is: 328,033.99
Step by Step Solution
- Step 1: Write the proportion equation
418,980.87 : 578,206.62 = 237,700.44 : x - Step 2: Convert to fraction form
418,980.87/578,206.62 = 237,700.44/x - Step 3: Cross multiply
418,980.87x = 578,206.62 × 237,700.44 - Step 4: Simplify right side
418,980.87x = 137,439,967,984.91 - Step 5: Solve for x
x = 137,439,967,984.91/418,980.87 - Step 6: Final answer
x = 328,033.99
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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.