Finding the Fourth Proportional to 505,176.14, 697,143.08 and 344,312.21
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Solution
The fourth proportional to 505,176.14, 697,143.08 and 344,312.21 is: 475,150.85
Step by Step Solution
- Step 1: Write the proportion equation
505,176.14 : 697,143.08 = 344,312.21 : x - Step 2: Convert to fraction form
505,176.14/697,143.08 = 344,312.21/x - Step 3: Cross multiply
505,176.14x = 697,143.08 × 344,312.21 - Step 4: Simplify right side
505,176.14x = 240,034,874,561.01 - Step 5: Solve for x
x = 240,034,874,561.01/505,176.14 - Step 6: Final answer
x = 475,150.85
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1.5x scale
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.