Finding the Fourth Proportional to 353,292.42, 487,354.28 and 245,675.62
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Solution
The fourth proportional to 353,292.42, 487,354.28 and 245,675.62 is: 338,900.75
Step by Step Solution
- Step 1: Write the proportion equation
353,292.42 : 487,354.28 = 245,675.62 : x - Step 2: Convert to fraction form
353,292.42/487,354.28 = 245,675.62/x - Step 3: Cross multiply
353,292.42x = 487,354.28 × 245,675.62 - Step 4: Simplify right side
353,292.42x = 119,731,064,898.65 - Step 5: Solve for x
x = 119,731,064,898.65/353,292.42 - Step 6: Final answer
x = 338,900.75
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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.