Finding the Fourth Proportional to 389,555.08, 537,585.78 and 210,707.08
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Solution
The fourth proportional to 389,555.08, 537,585.78 and 210,707.08 is: 290,775.65
Step by Step Solution
- Step 1: Write the proportion equation
389,555.08 : 537,585.78 = 210,707.08 : x - Step 2: Convert to fraction form
389,555.08/537,585.78 = 210,707.08/x - Step 3: Cross multiply
389,555.08x = 537,585.78 × 210,707.08 - Step 4: Simplify right side
389,555.08x = 113,273,129,953.32 - Step 5: Solve for x
x = 113,273,129,953.32/389,555.08 - Step 6: Final answer
x = 290,775.65
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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.