Finding the Fourth Proportional to 287,135.60, 430,703.40 and 73,903.10
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Solution
The fourth proportional to 287,135.60, 430,703.40 and 73,903.10 is: 110,854.65
Step by Step Solution
- Step 1: Write the proportion equation
287,135.60 : 430,703.40 = 73,903.10 : x - Step 2: Convert to fraction form
287,135.60/430,703.40 = 73,903.10/x - Step 3: Cross multiply
287,135.60x = 430,703.40 × 73,903.10 - Step 4: Simplify right side
287,135.60x = 31,830,316,440.54 - Step 5: Solve for x
x = 31,830,316,440.54/287,135.60 - Step 6: Final answer
x = 110,854.65
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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.