Finding the Fourth Proportional to 381,339.79, 526,248.99 and 211,573.51
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Solution
The fourth proportional to 381,339.79, 526,248.99 and 211,573.51 is: 291,971.49
Step by Step Solution
- Step 1: Write the proportion equation
381,339.79 : 526,248.99 = 211,573.51 : x - Step 2: Convert to fraction form
381,339.79/526,248.99 = 211,573.51/x - Step 3: Cross multiply
381,339.79x = 526,248.99 × 211,573.51 - Step 4: Simplify right side
381,339.79x = 111,340,345,948.26 - Step 5: Solve for x
x = 111,340,345,948.26/381,339.79 - Step 6: Final answer
x = 291,971.49
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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.