Finding the Fourth Proportional to 436,449.18, 602,209.56 and 255,126.06
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Solution
The fourth proportional to 436,449.18, 602,209.56 and 255,126.06 is: 352,021.17
Step by Step Solution
- Step 1: Write the proportion equation
436,449.18 : 602,209.56 = 255,126.06 : x - Step 2: Convert to fraction form
436,449.18/602,209.56 = 255,126.06/x - Step 3: Cross multiply
436,449.18x = 602,209.56 × 255,126.06 - Step 4: Simplify right side
436,449.18x = 153,639,352,337.13 - Step 5: Solve for x
x = 153,639,352,337.13/436,449.18 - Step 6: Final answer
x = 352,021.17
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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.