Finding the Fourth Proportional to 402,108.70, 555,034.58 and 258,868.75
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Solution
The fourth proportional to 402,108.70, 555,034.58 and 258,868.75 is: 357,319.07
Step by Step Solution
- Step 1: Write the proportion equation
402,108.70 : 555,034.58 = 258,868.75 : x - Step 2: Convert to fraction form
402,108.70/555,034.58 = 258,868.75/x - Step 3: Cross multiply
402,108.70x = 555,034.58 × 258,868.75 - Step 4: Simplify right side
402,108.70x = 143,681,107,931.38 - Step 5: Solve for x
x = 143,681,107,931.38/402,108.70 - Step 6: Final answer
x = 357,319.07
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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.