Finding the Fourth Proportional to 402,123.90, 602,201.70 and 191,515.80
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Solution
The fourth proportional to 402,123.90, 602,201.70 and 191,515.80 is: 286,804.99
Step by Step Solution
- Step 1: Write the proportion equation
402,123.90 : 602,201.70 = 191,515.80 : x - Step 2: Convert to fraction form
402,123.90/602,201.70 = 191,515.80/x - Step 3: Cross multiply
402,123.90x = 602,201.70 × 191,515.80 - Step 4: Simplify right side
402,123.90x = 115,331,140,336.86 - Step 5: Solve for x
x = 115,331,140,336.86/402,123.90 - Step 6: Final answer
x = 286,804.99
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.