Finding the Fourth Proportional to 306,030.24, 455,969.52 and 288,841.08
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Solution
The fourth proportional to 306,030.24, 455,969.52 and 288,841.08 is: 430,358.54
Step by Step Solution
- Step 1: Write the proportion equation
306,030.24 : 455,969.52 = 288,841.08 : x - Step 2: Convert to fraction form
306,030.24/455,969.52 = 288,841.08/x - Step 3: Cross multiply
306,030.24x = 455,969.52 × 288,841.08 - Step 4: Simplify right side
306,030.24x = 131,702,728,603.88 - Step 5: Solve for x
x = 131,702,728,603.88/306,030.24 - Step 6: Final answer
x = 430,358.54
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.